According to the American Cancer Society, the incidence rates for prostate cancer are 32 percent higher in African American men than in Caucasian men. Because prostate cancer occurs more often in some families, scientists believe that genetic factors play a strong role in determining the risk for this disease. Numerous studies indicate an increased risk of prostate cancer for men who have a close relative with the disease. Men whose fathers or brothers have had prostate cancer are clearly at risk. Men who have uncles or grandfathers who have had the disease are also at risk.
Studies show that environmental factors also contribute to prostate cancer incidence.
And, rates are generally higher in countries where more animal fat is consumed. Since prostate cancer in its early, and most treatable, stage often shows no outward signs or symptoms, screening tests are very important. Physicians who are specialists in urology commonly use two tests to help detect the disease. Men who experience any of these symptoms should visit a urologist. Any of these symptoms may also be due to a non-cancerous prostate or unrelated condition.