A sprain is caused by the twisting or bending of a joint into a position it was not designed to move. The ankle is the most commonly sprained joint. Some common symptoms of a sprain are pain around the joint, swelling, and bruising.
Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Dept of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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