Prostate cancer is a cancer that forms in tissues of the prostate (a gland in the male reproductive system). Prostate cancer usually occurs in older men. A man with prostate cancer may not have any symptoms.
For men who do have symptoms, the common symptoms are various urinary problems, difficulty having an erection, blood in the urine or semen, and frequent pain in the lower back, hips, or upper thighs. Although the exact cause is unclear, certain risk factors increase the chance that prostate cancer may develop. Diet is possibly a risk factor.
As with other cancers, a diet high in fats and low in fruit and vegetables may increase the risk. Exposure to the metal cadmium may be a risk. Prostate cancer is most closely linked to genetic risk factors of all cancer types. There are more than 20 genetic variants that are known to increase the risk of developing prostate cancer. The outlook for prostate cancer is very variable. If detected early, more than 90% of cases are cured.