Statistics
Prostate cancer is one of the most common cancers in men. About
140,000 new prostate cancers are diagnosed yearly in the U.S. and
about 40,000 men die of prostate cancer each year. It is estimated that
one in every ten men in the U.S. will develop prostate cancer in his
lifetime.


Risk Factors
    Age- As a man ages, his risk of developing prostate cancer increases

            Age                            Risk (%)                    Risk (ratio)         

            40                                0.01%                   1 in 10,000 men
            50                                0.3%                     1 in 333 men
            55                                1%                        1 in 100 men
            60                                2.5%                     1 in 40 men
            65                                5.1%                     1 in 19 men
            70                                8.5%                     1 in 11 men
            75                                12.0%                   1 in 8 men
            80                                14.8%                   1 in 7 men
            85                                16.6%                   1 in 6 men
            90+                              17.5%                   1 in 5 men
                                    

Family History- Having one first degree relative (brother or father) with
prostate cancer doubles the risk of developing prostate cancer. If a
person has more than one first degree relative with prostate cancer, his
risk will increase four to nine fold.

Ethnicity- African Americans are at highest risk for developing prostate
cancer. Asian Americans have the lowest risk.

Hormones- Prolonged exposure to testosterone is believed to be
associated with prostate cancer.  Testosterone is a hormone made
naturally by the testicles and adrenal glands.  Testosterone is
responsible for development, growth, and preservation of a man’s
sexual organs, hair pattern, muscle/bone density, and sexual drive.  
Men who lose both testicles before puberty have virtually no chance of
developing prostate cancer.