Orthopedics Foot and Ankle Injuries What is a Sprained Ankle? Share Pin Email More in Orthopedics Foot and Ankle Injuries Treatments Surgical Procedures Toe Problems Therapy and Rehab Foot and Ankle Pain Cause Treating Broken Bones Fractures and Dislocations Sprains and Strains Hip and Knee Shoulder and Elbow Information Hand and Wrist Rotator Cuff Injuries Back and Neck Pain Cause Hip and Knee Replacement Surgery Arthritis Pediatric Orthopedics Orthopedic Surgery Sports Injuries Osteoporosis View All Updated April 22, 2016 A sprained ankle is an injury to the ligament muscles connected to bone. Learn how to sprained ankles happen and how to prevent them in this video. Up Next Up Next Article How to Tell If You Have a Knee Sprain Up Next Article What You Need to Know About Ankle Sprains Up Next Article When Is Surgery Required for a Partial ACL Tear? Up Next Article What Are the Most Commonly Misdiagnosed Injuries in Sports?