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Search Health Information    Muscle Cramps

Muscle Cramps

A muscle cramp is a strong, painful muscle contraction or tightening that comes on suddenly and lasts from a few seconds to several minutes. Soreness in the muscle may last for hours after the hard, tense cramp has stopped.

The cause of muscle cramps is not always known. Muscle cramps may be brought on by many conditions or activities, such as:

  • Exercising, injury, or overuse of muscles.
  • Dehydration.
  • Pregnancy.
  • Exposure to cold temperatures, especially to cold water.
  • Other medical conditions, such as blood flow problems (peripheral arterial disease), kidney disease, thyroid disease, and multiple sclerosis.

Also, many medicines can cause muscle cramps.

Last Revised: June 27, 2012

Author: Healthwise Staff

Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

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