What causes an enlarged prostate?
We still don’t really know all the things that cause the prostate to grow. But we do know about two risk factors that can increase your risk of having an enlarged prostate.
Your risk of having an enlarged prostate increases as you get older. Many men aged 50 or over have an enlarged prostate, but they don’t all get symptoms. And some men have symptoms that don't bother them.
The balance of hormones (oestrogen and testosterone) in your body changes as you get older. This may cause your prostate to grow.
Some studies show that obese men and men who have diabetes may be more likely to develop an enlarged prostate. Regular exercise may help to reduce your risk of urinary symptoms. But we still need more studies into the causes of enlarged prostate to know for certain if, and how, we can prevent it.
There is also some research that suggests you may be more at risk of developing an enlarged prostate if your father or brother has one. Again, further studies are needed to confirm this.