The main risk factors for prostate gland enlargement include:

  • Aging. Prostate gland enlargement rarely causes signs and symptoms in men younger than 40. By 55, about 1 in 4 men have some signs and symptoms. By 75, about half of men report some symptoms.
  • Family history. Having a blood relative such as a father or brother with prostate problems means you're more likely to have problems as well.
  • Where you're from. Prostate enlargement is more common in American and Australian men. It's less common in Chinese, Indian and Japanese men.
Dec. 06, 2011

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