Causes

Sprains are caused when a joint is forced to move into an unnatural position. For example, "twisting" one's ankle causes a sprain to the ligaments around the ankle.

Definition

A sprain is an injury to the ligaments around a joint. Ligaments are strong, flexible fibers that hold bones together. When a ligament is stretched too far or tears, the area around the joint will become painful and swell.

Prevention

The following steps may lower your risk for a sprain:

  • Wear protective footwear during activities that place stress on your ankle and other joints.
  • Make sure that shoes fit your feet properly.
  • Avoid high-heeled shoes.
  • Always warm-up and stretch before doing exercise and sports.
  • Avoid sports and activities for which you have not trained.

References

Biundo JJ. Bursitis, tendinitis, and other periarticular disorders and sports medicine. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 247.

Geiderman JM, Torbati S. General principles of orthopedic injuries. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 41.

Wang D, Eliasberg CD, Rodeo SA. Physiology and pathophysiology of musculoskeletal tissues. In: Miller MD, Thompson SR. eds. DeLee, Drez, & Miller's Orthopaedic Sports Medicine. 5th ed. Philadelphia, PA: Elsevier; 2020:chap 1.

Symptoms

Symptoms of a sprain include:

When to Contact a Medical Professional

Go to the hospital right away or call 911 or the local emergency number if:

  • You think you have a broken bone.
  • The joint appears out of position.
  • You have a serious injury or severe pain.
  • You hear a popping sound and have immediate problems using the joint.

Contact your provider if:

  • Swelling does not start to go away within 2 days.
  • You have symptoms of infection, including red, warm, painful skin or a fever over 100°F (38°C).
  • The pain does not go away after several weeks.

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