question:  Prostate Cancer What is Prostate Cancer? How Tumors Form The body is made up of many types of cells. Normally, cells grow, divide, and produce more cells as needed to keep the body healthy and functioning properly. Sometimes, however, the process goes wrong -- cells become abnormal and form more cells in an uncontrolled way. These extra cells form a mass of tissue, called a growth or tumor. Tumors can be benign, which means not cancerous, or malignant, which means cancerous. How Prostate Cancer Occurs Prostate cancer occurs when a tumor forms in the tissue of the prostate, a gland in the male reproductive system. In its early stage, prostate cancer needs the male hormone testosterone to grow and survive. The prostate is about the size of a large walnut. It is located below the bladder and in front of the rectum. The prostate's main function is to make fluid for semen, a white substance that carries sperm. Prostate cancer is one of the most common types of cancer among American men. It is a slow-growing disease that mostly affects older men. In fact, more than 60 percent of all prostate cancers are found in men over the age of 65. The disease rarely occurs in men younger than 40 years of age. Prostate Cancer Can Spread Sometimes, cancer cells break away from a malignant tumor in the prostate and enter the bloodstream or the lymphatic system and travel to other organs in the body. When cancer spreads from its original location in the prostate to another part of the body such as the bone, it is called metastatic prostate cancer -- not bone cancer. Doctors sometimes call this distant disease. Surviving Prostate Cancer Today, more men are surviving prostate cancer than ever before. Treatment can be effective, especially when the cancer has not spread beyond the region of the prostate. Risk Factors Scientists don't know exactly what causes prostate cancer. They cannot explain why one man gets prostate cancer and another does not. However, they have been able to identify some risk factors that are associated with the disease. A risk factor is anything that increases your chances of getting a disease. Age Age is the most important risk factor for prostate cancer. The disease is extremely rare in men under age 40, but the risk increases greatly with age. More than 60 percent of cases are diagnosed in men over age 65. The average age at the time of diagnosis is 65. Race Race is another major risk factor. In the United States, this disease is much more common in African American men than in any other group of men. It is least common in Asian and American Indian men. Family History A man's risk for developing prostate cancer is higher if his father or brother has had the disease. Other Risk Factors Scientists have wondered whether obesity, lack of exercise, smoking, radiation exposure, might increase risk. But at this time, there is no firm evidence that these factors contribute to an increased risk. Symptoms and Tests Symptoms Most cancers in their early, most treatable stages don't cause any symptoms. Early prostate cancer usually does not cause symptoms. However, if prostate cancer develops and is not treated, it can cause these symptoms: - a need to urinate frequently, especially at night - difficulty starting urination or holding back urine - inability to urinate - weak or interrupted flow of urine - painful or burning urination - difficulty in having an erection - painful ejaculation - blood in urine or semen - pain or stiffness in the lower back, hips, or upper thighs. a need to urinate frequently, especially at night difficulty starting urination or holding back urine inability to urinate weak or interrupted flow of urine painful or burning urination difficulty in having an erection painful ejaculation blood in urine or semen pain or stiffness in the lower back, hips, or upper thighs. Any of these symptoms may be caused by cancer, but more often they are due to enlargement of the prostate, which is not cancer. If You Have Symptoms If you have any of these symptoms, see your doctor or a urologist to find out if you need treatment. A urologist is a doctor who specializes in treating diseases of the genitourinary system. The doctor will ask questions about your medical history and perform an exam to try to find the cause of the prostate problems. The PSA Test The doctor may also suggest a blood test to check your prostate specific antigen, or PSA, level. PSA levels can be high not only in men who have prostate cancer, but also in men with an enlarged prostate gland and men with infections of the prostate. PSA tests may be very useful for early cancer diagnosis. However, PSA tests alone do not always tell whether or not cancer is present. PSA screening for prostate cancer is not perfect. (Screening tests check for disease in a person who shows no symptoms.) Most men with mildly elevated PSA do not have prostate cancer, and many men with prostate cancer have normal levels of PSA. A recent study revealed that men with low prostate specific antigen levels, or PSA, may still have prostate cancer. Also, the digital rectal exam can miss many prostate cancers. Other Tests The doctor may order other exams, including ultrasound, MRI, or CT scans, to learn more about the cause of the symptoms. But to confirm the presence of cancer, doctors must perform a biopsy. During a biopsy, the doctor uses needles to remove small tissue samples from the prostate and then looks at the samples under a microscope. If Cancer is Present If a biopsy shows that cancer is present, the doctor will report on the grade of the tumor. Doctors describe a tumor as low, medium, or high-grade cancer, based on the way it appears under the microscope. One way of grading prostate cancer, called the Gleason system, uses scores of 2 to 10. Another system uses G1 through G4. The higher the score, the higher the grade of the tumor. High-grade tumors grow more quickly and are more likely to spread than low-grade tumors. Planning Treatment If tests show that you have cancer, you should talk with your doctor in order to make treatment decisions. Working With a Team of Specialists A team of specialists often treats people with cancer. The team will keep the primary doctor informed about the patient's progress. The team may include a medical oncologist who is a specialist in cancer treatment, a surgeon, a radiation oncologist who is a specialist in radiation therapy, and others. Before starting treatment, you may want another doctor to review the diagnosis and treatment plan. Some insurance companies require a second opinion. Others may pay for a second opinion if you request it. Clinical Trials for Prostate Cancer Some prostate cancer patients take part in studies of new treatments. These studies -- called clinical trials -- are designed to find out whether a new treatment is safe and effective. Often, clinical trials compare a new treatment with a standard one so that doctors can learn which is more effective. Men with prostate cancer who are interested in taking part in a clinical trial should talk with their doctor. The U.S. National Institutes of Health, through its National Library of Medicine and other Institutes, maintains a database of clinical trials at ClinicalTrials.gov. Click here to see a list of the current clinical trials on prostate cancer. A separate window will open. Click the "x" in the upper right hand corner of the "Clinical Trials" window to return here. Staging What is Staging? If cancer is found in the prostate, the doctor needs to know the stage of the disease and the grade of the tumor. Staging is a careful attempt to find out whether the cancer has spread and, if so, what parts of the body are affected. The grade tells how closely the tumor resembles normal tissue in appearance under the microscope. Doctors use various blood and imaging tests to learn the stage of the disease. Imaging tests, such as ultrasound, CT scans, and magnetic resonance imaging, or MRI, produce pictures of images inside the body. In 2013, a product called UroNav was introduced. Resembling a stylized computer workstation on wheels, UroNav electronically fuses together pictures from magnetic resonance imaging (MRI) and ultrasound to create a detailed, three-dimensional view of the prostate. This image helps doctors more precisely target the area in the prostate gland that needs to be biopsied. Stages of Prostate Cancer There are four stages used to describe prostate cancer. Doctors may refer to the stages using the Roman numerals I-IV or the capital letters A-D. The higher the stage, the more advanced the cancer. Following are the main features of each stage. Stage I or Stage A -- The cancer is too small to be felt during a rectal exam and causes no symptoms. The doctor may find it by accident when performing surgery for another reason, usually an enlarged prostate. There is no evidence that the cancer has spread outside the prostate. A sub-stage, T1c, is a tumor identified by needle biopsy because of elevated PSA. Stage II or Stage B -- The tumor is still confined to the prostate but involves more tissue within the prostate. The cancer is large enough to be felt during a rectal exam, or it may be found through a biopsy that is done because of a high PSA level. There is no evidence that the cancer has spread outside the prostate. Stage III or Stage C -- The cancer has spread outside the prostate to nearby tissues. A man may be experiencing symptoms, such as problems with urination. Stage IV or Stage D -- The cancer has spread to lymph nodes or to other parts of the body. The bones are a common site of spread of prostate cancer. There may be problems with urination, fatigue, and weight loss. Standard Treatments Choosing Treatment There are a number of ways to treat prostate cancer, and the doctor will develop a treatment to fit each man's needs. The choice of treatment mostly depends on the stage of the disease and the grade of the tumor. But doctors also consider a man's age, general health, and his feelings about the treatments and their possible side effects. Treatment for prostate cancer may involve watchful waiting, surgery, radiation therapy, or hormonal therapy. Some men receive a combination of therapies. A cure is the goal for men whose prostate cancer is diagnosed early. Weighing Treatment Options You and your doctor will want to consider both the benefits and possible side effects of each option, especially the effects on sexual activity and urination, and other concerns about quality of life. Surgery, radiation therapy, and hormonal therapy all have the potential to disrupt sexual desire or performance for a short while or permanently. Discuss your concerns with your health care provider. Several options are available to help you manage sexual problems related to prostate cancer treatment. Watchful Waiting The doctor may suggest watchful waiting for some men who have prostate cancer that is found at an early stage and appears to be growing slowly. Also, watchful waiting may be advised for older men or men with other serious medical problems. For these men, the risks and possible side effects of surgery, radiation therapy, or hormonal therapy may outweigh the possible benefits. Doctors monitor these patients with regular check-ups. If symptoms appear or get worse, the doctor may recommend active treatment. Surgery Surgery is used to remove the cancer. It is a common treatment for early stage prostate cancer. The surgeon may remove the entire prostate with a type of surgery called radical prostatectomy or, in some cases, remove only part of it. Sometimes the surgeon will also remove nearby lymph nodes. Side effects of the operation may include lack of sexual function or impotence, or problems holding urine or incontinence. Improvements in surgery now make it possible for some men to keep their sexual function. In some cases, doctors can use a technique known as nerve-sparing surgery. This may save the nerves that control erection. However, men with large tumors or tumors that are very close to the nerves may not be able to have this surgery. Some men with trouble holding urine may regain control within several weeks of surgery. Others continue to have problems that require them to wear a pad. Radiation Therapy Radiation therapy uses high-energy x-rays to kill cancer cells and shrink tumors. Doctors may recommend it instead of surgery, or after surgery, to destroy any cancer cells that may remain in the area. In advanced stages, the doctor may recommend radiation to relieve pain or other symptoms. It may also be used in combination with hormonal therapy. Radiation can cause problems with impotence and bowel function. The radiation may come from a machine, which is external radiation, or from tiny radioactive seeds placed inside or near the tumor, which is internal radiation. Men who receive only the radioactive seeds usually have small tumors. Some men receive both kinds of radiation therapy. For external radiation therapy, patients go to the hospital or clinic -- usually for several weeks. Internal radiation may require patients to stay in the hospital for a short time. Hormonal Therapy Hormonal therapy deprives cancer cells of the male hormones they need to grow and survive. This treatment is often used for prostate cancer that has spread to other parts of the body. Sometimes doctors use hormonal therapy to try to keep the cancer from coming back after surgery or radiation treatment. Side effects can include impotence, hot flashes, loss of sexual desire, and thinning of bones. Some hormone therapies increase the risk of blood clots. Monitoring Treatment Regardless of the type of treatment you receive, you will be closely monitored to see how well the treatment is working. Monitoring may include - a PSA blood test -- usually every 3 months to 1 year. - bone scan and/or CT scan to see if the cancer has spread. - a complete blood count to monitor for signs and symptoms of anemia. - looking for signs or symptoms that the disease might be progressing, such as fatigue, increased pain, or decreased bowel and bladder function. a PSA blood test -- usually every 3 months to 1 year. bone scan and/or CT scan to see if the cancer has spread. a complete blood count to monitor for signs and symptoms of anemia. looking for signs or symptoms that the disease might be progressing, such as fatigue, increased pain, or decreased bowel and bladder function. Latest Research Scientists continue to look at new ways to prevent, treat, and diagnose prostate cancer. Research has already led to a number of advances in these areas. Dietary Research Several studies are under way to explore the causes of prostate cancer. Some researchers think that diet may affect a man's chances of developing prostate cancer. For example, some studies show that prostate cancer is more common in populations that consume a high-fat diet, particularly animal fat, and in populations with diets that lack certain nutrients. Research on Testosterone Some research suggests that high levels of testosterone may increase a man's risk of prostate cancer. The difference in prostate cancer risk among racial groups could be related to high testosterone levels, but it also could result from diet or other lifestyle factors. Genetic Research Researchers are studying changes in genes that may increase the risk for developing prostate cancer. Some studies are looking at the genes of men who were diagnosed with prostate cancer at a relatively young age, such as less than 55 years old, and the genes of families who have several members with the disease. Other studies are trying to identify which genes, or arrangements of genes, are most likely to lead to prostate cancer. Much more work is needed, however, before scientists can say exactly how genetic changes relate to prostate cancer. Prevention Research Several studies have explored ways to prevent prostate cancer. In October 2008, initial results of a study on the use of the dietary supplements vitamin E and selenium found that they did not provide any benefit in reducing the number of new cases of the disease. A few studies suggest that a diet that regularly includes tomato-based foods may help protect men from prostate cancer, but there are no studies that conclusively prove this hypothesis. According to results of a study that was re-analyzed in 2013, men who took finasteride, a drug that affects male hormone levels, reduced their chances of getting prostate cancer by nearly 30 percent compared to men who took a placebo. Unlike earlier findings from this study, this new analysis showed no increased risk of late stage disease due to use of finasteride. Stopping Prostate Cancer from Returning Scientists are also looking at ways to stop prostate cancer from returning in men who have already been treated for the disease. These approaches use drugs such as finasteride, flutamide, nilutamide, and LH-RH agonists that manipulate hormone levels. In 2010, the FDA approved a therapeutic cancer vaccine, Provenge, for use in some men with metastatic prostate cancer. Provenge may provide a 4-month improvement in overall survival compared with a placebo vaccine. Other similar vaccine therapies are in development. Research on New Blood Tests Some researchers are working to develop new blood tests to detect the antibodies that the immune system produces to fight prostate cancer. When used along with PSA testing, the antibody tests may provide more accurate results about whether or not a man has prostate cancer. Researching New Approaches to Treatment Through research, doctors are trying to find new, more effective ways to treat prostate cancer. Cryosurgery -- destroying cancer by freezing it -- is under study as an alternative to surgery and radiation therapy. To avoid damaging healthy tissue, the doctor places an instrument known as a cryoprobe in direct contact with the tumor to freeze it. Doctors are studying new ways of using radiation therapy and hormonal therapy, too. Studies have shown that hormonal therapy given after radiation therapy can help certain men whose cancer has spread to nearby tissues. Scientists are also testing the effectiveness of chemotherapy and biological therapy for men whose cancer does not respond, or stops responding, to hormonal therapy. They are also exploring new ways to schedule and combine various treatments. For example, they are studying hormonal therapy to find out if using it to shrink the tumor before a man has surgery or radiation might be a useful approach. For men with early stage prostate cancer, researchers are also comparing treatment with watchful waiting. The results of this work will help doctors know whether to treat early stage prostate cancer immediately or only later on, if symptoms occur or worsen. Frequently Asked Questions What is cancer? The body is made up of many types of cells. Normally, cells grow, divide, and produce more cells as needed to keep the body healthy. Sometimes, however, the process goes wrong -- cells become abnormal and form more cells in an uncontrolled way. These extra cells form a mass of tissue, called a growth or tumor. Tumors can be benign, which means not cancerous, or malignant, which means cancerous. What is prostate cancer? The prostate is a male sex gland, about the size of a large walnut. It is located below the bladder and in front of the rectum. The prostate's main function is to make fluid for semen, a white substance that carries sperm. Prostate cancer occurs when a tumor forms in the tissue of the prostate. In its early stage, prostate cancer needs the male hormone testosterone to grow and survive. How common is prostate cancer among men in the United States? Prostate cancer is one of the most common types of cancer among American men. It is a slow-growing disease that mostly affects older men. In fact, more than 60 percent of all prostate cancers are found in men over the age of 65. The disease rarely occurs in men younger than 40 years of age. What is metastatic prostate cancer? Sometimes, cancer cells break away from the malignant tumor in the prostate and enter the bloodstream or the lymphatic system and travel to other organs in the body. When cancer spreads from its original location in the prostate to another part of the body such as the bone, it is called metastatic prostate cancer, not bone cancer. Doctors sometimes call this "distant" disease. Can a man survive prostate cancer? Yes. Today, more men are surviving prostate cancer than ever before. In fact, the number of deaths from prostate cancer has been declining since the early 1990s. If found early, the disease can very likely be cured. What causes prostate cancer? Scientists don't know exactly what causes prostate cancer. They cannot explain why one man gets prostate cancer and another does not. However, they have been able to identify some risk factors that are associated with the disease. A risk factor is anything that increases your chances of getting a disease. What is the most important risk factor for prostate cancer? Age is the most important risk factor for prostate cancer. The disease is extremely rare in men under age 40, but the risk increases greatly with age. More than 60 percent of cases are diagnosed in men over age 65. The average age at the time of diagnosis is 65. Are there other major risk factors for prostate cancer besides age? Yes. Race is another major risk factor. In the United States, this disease is much more common in African American men than in any other group of men. It is least common in Asian and American Indian men. A man's risk for developing prostate cancer is higher if his father or brother has had the disease. Diet also may play a role. There is some evidence that a diet high in animal fat may increase the risk of prostate cancer and a diet high in fruits and vegetables may decrease the risk. Studies to find out whether men can reduce their risk of prostate cancer by taking certain dietary supplements are ongoing. Are conditions like an enlarged prostate or obesity risk factors for prostate cancer? Scientists have wondered whether obesity, lack of exercise, smoking, and radiation exposure, might increase risk. But at this time, there is no conclusive evidence that any of these factors contribute to an increased risk. What are the symptoms of prostate cancer? - a need to urinate frequently, especially at night - difficulty starting urination or holding back urine - inability to urinate - weak or interrupted flow of urine a need to urinate frequently, especially at night difficulty starting urination or holding back urine inability to urinate weak or interrupted flow of urine If prostate cancer develops and is not treated, it can cause these symptoms: - painful or burning urination - difficulty in having an erection - painful ejaculation - blood in urine or semen - pain or stiffness in the lower back, hips, or upper thighs painful or burning urination difficulty in having an erection painful ejaculation blood in urine or semen pain or stiffness in the lower back, hips, or upper thighs Are there other conditions that have symptoms like prostate cancer? Yes. Any of the symptoms caused by prostate cancer may also be due to enlargement of the prostate, which is not cancer. If you have any of the symptoms mentioned in question #10, see your doctor or a urologist to find out if you need treatment. A urologist is a doctor who specializes in treating diseases of the genitourinary system. What tests are available for men who have prostate problems? Doctors use tests to detect prostate abnormalities, but tests cannot show whether abnormalities are cancer or another, less serious condition. The results from these tests will help the doctor decide whether to check the patient further for signs of cancer. The most common test is a blood test for prostate specific antigen or PSA -- a lab measures the levels of PSA in a blood sample. The level of PSA may rise in men who have prostate cancer, an enlarged prostate, or infection in the prostate. If initial tests show that prostate cancer might be present, what happens next? The doctor may order other exams, including ultrasound, MRI, or CT scans, to learn more about the cause of the symptoms. But to confirm the presence of cancer, doctors must perform a biopsy. During a biopsy, the doctor uses needles to remove small tissue samples from the prostate and then looks at the samples under a microscope. If a biopsy shows that cancer is present, the doctor will report on the grade of the tumor. Doctors describe a tumor as low, medium, or high-grade cancer, based on the way it appears under the microscope. If prostate cancer is found, how do doctors describe how far the cancer has spread? If cancer is found in the prostate, the doctor needs to stage the disease. Staging is a careful attempt to find out whether the cancer has spread and, if so, what parts of the body are affected. The doctor also needs to find out the grade of the cancer. The grade tells how closely the tumor resembles normal tissue. There are four stages used to describe prostate cancer. Doctors may refer to the stages using Roman numerals I-IV or capital letters A-D. The higher the stage, the more advanced the cancer. Following are the main features of each stage. Stage I or Stage A -- The cancer is too small to be felt during a rectal exam and causes no symptoms. The doctor may find it by accident when performing surgery for another reason, usually an enlarged prostate. There is no evidence that the cancer has spread outside the prostate. A sub-stage, T1c, is a tumor identified by needle biopsy because of elevated PSA. Stage II or Stage B -- The tumor is still confined to the prostate but involves more tissue within the prostate. The cancer is large enough to be felt during a rectal exam, or it may be found through a biopsy that is done because of a high PSA level. There is no evidence that the cancer has spread outside the prostate. Stage III or Stage C -- The cancer has spread outside the prostate to nearby tissues. The person may be experiencing symptoms, such as problems with urination. Stage IV or Stage D -- The cancer has spread to lymph nodes or to other parts of the body. There may be problems with urination, fatigue, and weight loss. If I do need to seek treatment for prostate cancer, what are some of my options? There are a number of ways to treat prostate cancer, and the doctor will develop a treatment to fit each man's needs. The choice of treatment mostly depends on the stage of the disease and the grade of the tumor. But doctors also consider a man's age, general health, and his feelings about the treatments and their possible side effects. Treatment for prostate cancer may involve watchful waiting, surgery, radiation therapy, or hormonal therapy. Some men receive a combination of therapies. A cure is probable for men whose prostate cancer is diagnosed early. What are some of the side effects of these treatments? Surgery, radiation therapy, and hormonal therapy all have the potential to disrupt sexual desire or performance for a short while or permanently. Discuss your concerns with your health care provider. Several options are available to help you manage sexual problems related to prostate cancer treatment. What is "watchful waiting" and why would I choose it as a treatment? With watchful waiting, a man's condition is closely monitored, but treatment does not begin until symptoms appear or change. The doctor may suggest watchful waiting for some men who have prostate cancer that is found at an early stage and appears to be growing slowly. Also, watchful waiting may be advised for older men or men with other serious medical problems. For these men, the risks and possible side effects of surgery, radiation therapy, or hormonal therapy may outweigh the possible benefits. Doctors monitor these patients with regular check-ups. If symptoms appear or get worse, the doctor may recommend active treatment. What types of surgery are available for men with prostate cancer? Surgery is a common treatment for early stage prostate cancer. It is used to remove the cancer. The surgeon may remove the entire prostate -- a type of surgery called radical prostatectomy -- or, in some cases, remove only part of it. Sometimes the surgeon will also remove nearby lymph nodes. Side effects may include lack of sexual function (impotence), or problems holding urine (incontinence). How is radiation used to treat prostate cancer? Radiation therapy uses high-energy x-rays to kill cancer cells and shrink tumors. Doctors may recommend it instead of surgery or after surgery to destroy any cancer cells that may remain in the area. In advanced stages, the doctor may recommend it to relieve pain or other symptoms. Radiation can cause problems with impotence and bowel function. The radiation may come from a machine, which is external radiation, or from tiny radioactive seeds placed inside or near the tumor, which is internal radiation. Men who receive only the radioactive seeds usually have small tumors. Some men receive both kinds of radiation therapy. For external radiation therapy, patients go to the hospital or clinic -- usually 5 days a week for several weeks. Internal radiation may require patients to stay in the hospital for a short time. How is hormonal therapy used to treat prostate cancer? Hormonal therapy deprives cancer cells of the male hormones they need to grow and survive. This treatment is often used for prostate cancer that has spread to other parts of the body. Sometimes doctors use hormonal therapy to try to keep the cancer from coming back after surgery or radiation treatment. Side effects can include impotence, hot flashes, loss of sexual desire, and thinning of bones. What kinds of follow-up treatment could I have? Regardless of the type of treatment you receive, you will be closely monitored to see how well the treatment is working. Monitoring may include - a PSA blood test, usually every 3 months to 1 year. - bone scan and/or CT scan to see if the cancer has spread. a PSA blood test, usually every 3 months to 1 year. bone scan and/or CT scan to see if the cancer has spread. - a complete blood count to monitor for signs and symptoms of anemia. - looking for signs or symptoms that the disease might be progressing, such as fatigue, increased pain, or decreased bowel and bladder function. a complete blood count to monitor for signs and symptoms of anemia. looking for signs or symptoms that the disease might be progressing, such as fatigue, increased pain, or decreased bowel and bladder function. What kinds of treatments for prostate cancer are being developed? Through research, doctors are trying to find new, more effective ways to treat prostate cancer. Cryosurgery -- destroying cancer by freezing it -- is under study as an alternative to surgery and radiation therapy. To avoid damaging healthy tissue, the doctor places an instrument known as a cryoprobe in direct contact with the tumor to freeze it. Doctors are studying new ways of using radiation therapy and hormonal therapy, too. Studies have shown that hormonal therapy given after radiation therapy can help certain men whose cancer has spread to nearby tissues. Scientists are also testing the effectiveness of chemotherapy and biological therapy for men whose cancer does not respond or stops responding to hormonal therapy. They are also exploring new ways to schedule and combine various treatments. For example, they are studying hormonal therapy to find out if using it to shrink the tumor before a man has surgery or radiation might be a useful approach. They are also testing combinations of hormone therapy and vaccines to prevent recurrence of prostate cancer. In 2010, the FDA approved a therapeutic cancer vaccine, Provenge, for use in some men with metastatic prostate cancer. This approval was based on the results of a clinical trial that demonstrated a more than 4-month improvement in overall survival compared with a placebo vaccine. Other similar vaccine therapies are in development. Are there genes that put me at greater risk of getting prostate cancer? Researchers are studying changes in genes that may increase the risk for developing prostate cancer. Some studies are looking at the genes of men who were diagnosed with prostate cancer at a relatively young age, less than 55 years old, and the genes of families who have several members with the disease. Other studies are trying to identify which genes, or arrangements of genes, are most likely to lead to prostate cancer. Much more work is needed, however, before scientists can say exactly how genetic changes relate to prostate cancer. At the moment, no genetic risk has been firmly established. Are there other options for someone with prostate cancer? Some prostate cancer patients take part in studies of new treatments. These studies -- called clinical trials -- are designed to find out whether a new treatment is safe and effective. Often, clinical trials compare a new treatment with a standard one so that doctors can learn which is more effective. People with prostate cancer who are interested in taking part in a clinical trial should talk with their doctor. The U.S. National Institutes of Health, through its National Library of Medicine and other Institutes, maintains a database of clinical trials at ClinicalTrials.gov. Click here to see a list of the current clinical trials on prostate cancer. A separate window will open. Click the "x" in the upper right hand corner of the "Clinical Trials" window to return here. What role do diet and dietary supplements play in prostate cancer? One study, called SELECT, found that men taking the dietary supplements vitamin E and/or selenium saw no reduction in their risk of getting prostate cancer. At the moment, no dietary factor has been proven to change your risk of developing prostate cancer or to alter the course of the disease after diagnosis. Who can provide emotional support for someone dealing with prostate cancer? Living with a serious disease such as cancer is not easy. Some people find they need help coping with the emotional as well as the practical aspects of their disease. Patients often get together in support groups where they can share what they have learned about coping with their disease and the effects of treatment. Patients may want to talk with a member of their health care team about finding a support group. People living with cancer may worry about caring for their families, keeping their jobs, or continuing daily activities. Concerns about treatments and managing side effects, hospital stays, and medical bills are also common. Doctors, nurses, dietitians, and other members of the health care team can answer questions about treatment, working, or other activities. Meeting with a social worker, counselor, or member of the clergy can be helpful to those who want to talk about their feelings or discuss their concerns. Often, a social worker can suggest resources for help with rehabilitation, emotional support, financial aid, transportation, or home care. It is natural for a man and his partner to be concerned about the effects of prostate cancer and its treatment on their sexual relationship. They may want to talk with the doctor about possible side effects and whether these are likely to be temporary or permanent. Whatever the outlook, it is usually helpful for patients and their partners to talk about their concerns and help one another find ways to be intimate during and after treatment. 