Signs and symptoms
Some or all of the following symptoms may be present, though it is possible not to experience any symptoms:
Abdominal pain. Dull aching pain within the abdomen or pelvis, especially during intercourse. Uterine bleeding. Pain during or shortly after beginning or end of menstrual period; irregular periods, or abnormal uterine bleeding or spotting. Fullness, heaviness, pressure, swelling, or bloating in the abdomen. When a cyst ruptures from the ovary, there may be sudden and sharp pain in the lower abdomen on one side. Change in frequency or ease of urination (such as inability to fully empty the bladder), or difficulty with bowel movements due to pressure on adjacent pelvic anatomy. Constitutional symptoms such as fatigue, headaches. Nausea or vomiting
Weight gainOther symptoms may depend on the cause of the cysts:
Symptoms that may occur if the cause of the cysts is polycystic ovarian syndrome (PCOS) may include increased facial hair or body hair, acne, obesity and infertility. If the cause is endometriosis, then periods may be heavy, and intercourse painful.The effect of cysts not related to PCOS on fertility is unclear. Cyst rupture
A ruptured ovarian cyst is usually self-limiting, and only requires keeping an eye on the situation and pain medications. The main symptom is abdominal pain, which may last a few days to several weeks, but they can also be asymptomatic. Rupture of large ovarian cysts can cause bleeding inside the abdominal cavity and in some cases shock.
Histopathology
In case an ovarian cyst is surgically removed, a more definite diagnosis can be made by histopathology:

Treatment
Cysts associated with hypothyroidism or other endocrine problems are managed by treating the underlying condition. About 95% of ovarian cysts are benign, not cancerous. Functional cysts and hemorrhagic ovarian cysts usually resolve spontaneously. However, the bigger an ovarian cyst is, the less likely it is to disappear on its own. Treatment may be required if cysts persist over several months, grow, or cause increasing pain. Cysts that persist beyond two or three menstrual cycles, or occur in post-menopausal women, may indicate more serious disease and should be investigated through ultrasonography and laparoscopy, especially in cases where family members have had ovarian cancer. Such cysts may require surgical biopsy. Additionally, a blood test may be taken before surgery to check for elevated CA-125, a tumour marker, which is often found in increased levels in ovarian cancer, although it can also be elevated by other conditions resulting in a large number of false positives. Pain
Pain associated with ovarian cysts may be treated in several ways:

Pain relievers such as acetaminophen, nonsteroidal anti-inflammatory drugs, or opioids. While hormonal birth control prevents the development of new cysts in those who frequently get them, it is not useful for the treatment of current cysts. Surgery
Although most cases of ovarian cysts involve monitoring, some cases require surgery. This may involve removing the cyst, or one or both ovaries. Technique is typically laparoscopic, unless the cyst is particularly large, or if pre-operative imaging suggests malignancy or complex anatomy.