Studies have shown that BPH is not related to higher risk of developing prostate cancer. However, patients with BPH is recommended to have annual PSA test and Digital Rectal Exam for screening purposes. High fat diet may increase the risk of developing prostate cancer. The results of most studies have confirmed this finding. Whether fatty food intake is an increased risk factor, or decreased fruits and vegetables intake in men who eat higher fat diets is the cause, is still unknown.
Prostate cancer is most common in northwestern Europe, especially in Sweden and Denmark.
It is also common in North America. It occurs less frequently in Japan, China, and other countries in Asia, Central America and South America. Prostate cancer is twice as common among African-American males as it is among Caucasian Americans. The risk among oriental males remains low. Corrected for stage, African-American patients also have lower survival rates.