Muscle strain

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Most muscle strains (pulled muscles) are caused by overstretching muscles. Strains may be minor or severe, such as a torn muscle or tendon.

Symptoms of a muscle strain can vary depending on how severe the strain is and may include:

  • Pain and tenderness that is worse with movement.
  • Swelling and bruising.
  • Normal or limited muscle movement.
  • A bulge or deformity at the site of a complete tear.

Recovery time for a muscle strain can vary depending on a person's age and health and the type and severity of the strain. While a minor strain often heals well with home treatment, a severe strain may require medical treatment. If a severe strain is not treated, a person may have long-term pain, limited movement, and deformity.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.