Prostate cancer occurs when the cells in the prostate gland grow in an abnormal way, creating a lump of tissue, known as a 'tumour'.
While the causes of prostate cancer are not fully understood, there are a number of factors associated with the risk of developing the disease.
These factors include:
- increasing age
- family history — having a father or brother who had prostate cancer increases the risk
- changes to your genes — changes in the BRCA1 or BRCA2 genes may increase the risk of developing prostate cancer in some men
- eating a high fat diet and not enough fresh fruit and vegetables
- having high testosterone levels
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Last reviewed: August 2018