According to Prostate Cancer UK, they say the biggest risk factor of developing this type of cancer would be age. Prostate cancer is most likely to develop in men over the age of 50 but it could be diagnosed earlier.
A second risk factor is if there is a family history. Men whose father or brother has had prostate cancer are 2.5 times likely to develop the disease.
Thirdly, consider the ethnicity. For some unknown reason, it has known that
African Caribbean are most likely to develop cancer and may develop earlier.
Lifestyle may also increase the risk of prostate cancer therefore following a healthy diet will play a role in preventing the disease from occurring.
Source: Postate Cancer UK