The causes of prostate cancer are not well known. Factors that may increase the risk of this disease include:
- Age. Prostate cancer is found mainly in men over age 55. The average age of patients at the time of diagnosis is 70.
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Family history of prostate cancer. A man's risk for developing prostate cancer is higher if his father or brother has had the disease.
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Race. Prostate cancer is much more common in African American men than in white men. It's less common in Asian and American Indian men.
- Diet and dietary factors . Diets high in animal fat may increase the risk of prostate cancer and a diet high in fruits and vegetables may decrease the risk.
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