Health Tip: Common Causes of Male Infertility

A partial list

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(HealthDay News) -- Infertility -- defined by the American Academy of Family Physicians as the inability of a couple to become pregnant after one year of trying -- affects about 15 percent of the population.

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The academy offers this list of common causes of male infertility:

• The most common cause is varicocele, when the veins in the scrotum become enlarged. This can affect sperm production by heating the inside of the scrotum.
• A blockage in the reproductive system.
• Low sperm count.
• Abnormally shaped sperm, or sperm that move abnormally.
• An undescended testicle.
• Certain medications.
• Another medical problem.

-- Diana Kohnle