Like all types of cancer, the exact cause of prostate cancer isn’t easy to determine. In many cases, multiple factors may be involved, including genetics and exposure to environmental toxins, like certain chemicals or radiation.It’s not known exactly what causes prostate cancer, although a number of things can increase your risk of developing the condition.
age – the risk rises as you get older, and most cases are diagnosed in men over 50 years of age
ethnic group – prostate cancer is more common among men of African-Caribbean and African descent than in Asian men
family history – having a brother or father who developed prostate cancer before age 60 seems to increase your risk of developing it; research also shows that having a close female relative who developed breast cancer may also increase your risk of developing prostate cancer
obesity – recent research suggests there may be a link between obesity and prostate cancer, and a balanced diet and regular exercise may lower your risk of developing prostate cancer
diet – research is ongoing into the links between diet and prostate cancer, and there is some evidence that a diet high in calcium is linked to an increased risk of developing prostate cancer
Ultimately, mutations in your DNA, or genetic material, lead to the growth of cancerous cells. These mutations cause cells in your prostate to start growing uncontrollably and abnormally. Abnormal or cancerous cells continue to grow and divide until a tumor develops. If you have an aggressive type of prostate cancer, the cells may metastasize, or leave the original tumor site and spread to other parts of your body.