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Fertility Problems - Cause

Fertility problems have many causes that involve either the woman's, the man's, or both partners' reproductive systems. Some causes include:

Rates of infertility and miscarriage increase with age. A woman's fertility peaks in her late 20s. It gradually begins to decline in her early 30s. A more pronounced drop in fertility and increase in miscarriage risk begins around her mid-30s. This is primarily due to the aging egg supply. Male fertility also decreases with age. But it is a more gradual decline than in women.

Recommended Related to Infertility & Reproduction

Sperm FAQ

If it takes just one sperm and one egg to create a baby, why must men make so many sperm? And how many sperm are considered normal? How long do sperm live? Can they survive outside the body? Do men stop making sperm as they age? Is there anything you can do to increase sperm production or improve the health of your sperm? WebMD takes a look at the facts about sperm and answers these and other frequently asked questions.

Read the Sperm FAQ article > >

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: June 04, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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