Please note: This information was current at the time of publication. But medical information is always changing, and some information given here may be out of date. For regularly updated information on a variety of health topics, please visit, the AAFP patient education website.

Information from Your Family Doctor

The Female Athlete Triad


Am Fam Physician. 2000 Jun 1;61(11):3367.

  See related article on the female athlete triad.

What is the female athlete triad?

The female athlete triad is a disorder that has three parts. It affects (1) your eating habits, (2) your menstrual periods and (3) the strength of your bones. If you have the female athlete triad, you've stopped eating normally. Your menstrual periods have stopped or have become irregular. You may also have osteoporosis. This is a disease that makes your bones thin and weak. Without treatment, the loss of bone strength may last forever.

What are the risk factors for female athlete triad?

  • Being a competitive athlete

  • Playing sports that require you to check your weight often

  • Not having time to spend with your friends because your sport takes up all your free time

  • Exercising more than is necessary for your sport

  • Being pushed by your coach or your parents to win at all costs

What are the signs of female athlete triad?

Some symptoms of the female athlete triad are weight loss, absent or irregular periods, fatigue and stress fractures.

Why should I worry about this now, while I'm young?

If you don't have periods for more than three to four months, it can hurt your bone strength. You start to lose strength in your bones after only a few months with no periods.

How is the female athlete triad diagnosed?

Your doctor will ask you some questions and do a physical exam. Your doctor may ask you about your periods, exercise patterns and eating habits. Your doctor may also ask you if you take any medicines such as birth control pills, laxatives or diet pills.

How is the female athlete triad treated?

Your doctor will talk with you about changing the way you eat and the way you exercise. After you make only a few changes, your regular periods should come back. If not, your doctor may talk with you about taking some medicines such as birth control pills or hormones (like estrogen and progesterone) to stop your body from losing any more bone strength.

How can I keep the female athlete triad from happening?

  • Eat a nutritious, well-balanced diet

  • Exercise in moderate amounts

  • Tell your doctor about any changes in your periods

This handout is provided to you by your family doctor and the American Academy of Family Physicians. Other health-related information is available from the AAFP online at

This information provides a general overview and may not apply to everyone. Talk to your family doctor to find out if this information applies to you and to get more information on this subject.


Copyright © 2000 by the American Academy of Family Physicians.
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