When colon cancer is detected in its early stages, it may not have even caused symptoms. Symptoms can also vary according to the specific location within the colon where the tumor is located. Some symptoms and signs of colon cancer are: rectal bleeding or blood in the stool, dark-colored stool, change in bowel habits, change in stool consistency,
Most skin cancers are caused by exposure to the sun. There are 2 main types of non melanoma skin cancer, basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). A history of sunburn increases the risk of BCC.Risk is especially high if you had several episodes of sunburn in childhood.here are 2 main types of non melanoma skin cancer Ì¶Ì¶ basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). A history of sunburn or recreational exposure to sunlight increases the risk of BCC.
Causes. Sunburn results when the amount of exposure to the sun or other ultraviolet light source exceeds the ability of the melanin to protect the skin. Melanin is the skin's protective coloring (pigment).kin cancer usually appears in adulthood. But it is caused by sun exposure and sunburns that began as early as childhood. You can help prevent skin cancer by protecting your skin and your children's skin from the harmful rays of the sun.