Hi,
Prostate cancer is the most common cancer in men (not counting non melanoma skin cancer) about 24 out of every 100 cancers diagnosed in men. Normally it is related to age: It is quite rare in men under 50 years but nearly 2 out of 3 cases (63%) are in men aged 70 and over. Age is the most significant risk factor of all for prostate cancer. The older you are, the greater the risk is. I read an article that claims that all men would have prostate cancer if they lived to over a hundred. About 73 men out of every 1,000 get prostate cancer at some point in their lives. That is an average risk of 1 in 14 (~ 7%).
A family history of prostate cancer: If you have a relative diagnosed with prostate cancer you are at double risk of getting it yourself (compared to the average man). If you have a brother with prostate cancer, your risk is even higher (~3 times the average risk). The age that your relative was diagnosed with prostate cancer is also a major factor: If he was diagnosed before the age of 60, this increases your risk to ~ 4 times the average. And if you have more than one first degree relative (father, brother or son) diagnosed with prostate cancer (at any age) your risk is also about 4 times the average. If your relative was diagnosed when being young, or if you have several relatives with prostate cancer, these could be signs that there is a "faulty gene" present (nad inherited) in the family along history. A strong family history of breast cancer may increase your risk of prostate cancer (specially if diagnosed at under being 40). This is because the BRCA1 and BRCA2 genes associated with a higher risk of breast cancers, are also linked to a higher risk of prostate cancer. Carrying the BRCA2 gene increases one's risk to have prostate cancer to ~ 7 times the average (getting before you are 65). African ancestry Proatate cancer is more common in black men than it is in white or Asian men. It's probably due to a mixture of inherited genes and environmental factors. Diabetes: Diabetes mellitus have about a third lower risk of prostate cancer than the average man. Diet: Eating a healthy diet can lower one's risk of many cancers. It's still too early to state that diet can affect prostate cancer risk. It seems that Calcium from dairy product increase prostate cancer risk (but not from other sources). There is some evidence that lycopene from tomatoes and selenium (Se) may lower risk. IGF-1 or 'insulin like growth factor': There is some evidence / link between levels of this chemical in the blood and prostate cancer risk. Hormones: It's not clear if hormone levels play a part in prostate cancer risks. Aspirin and other non steroidal anti-inflammatory drugs (NSAIDs): A systematic review of several studies has shown a lowered risk of prostate cancer in men who regularly take it. Other studies have shown a reduced risk with any type of NSAID.
Best regards,