An ankle injury, also known as a SPRAIN, is a common injury caused by the stretching or tearing of ligaments in the ankle joint. It is usually caused by an awkward twist or turn of the ankle, and can range from mild to severe. Symptoms of a SPRAIN include pain, swelling, bruising, and difficulty walking. Treatment for a SPRAIN typically includes rest, ice, compression, and elevation. In more severe cases, surgery may be necessary.