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What Is It?
An ankle sprain is a stretch or tear in one or more of the ankle ligaments. Ankle ligaments are slightly elastic bands of tissue that keep the ankle bones in place. Ankles are particularly prone to sprain because of the small size of the joint and the forces exerted when walking, running and jumping, especially if the surface is uneven.
Depending on the severity of the injury, an ankle sprain is classified as:
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