An ankle sprain is an injury to the ligaments in the ankle. Ligaments
are tough bands of elastic tissue that connect bones to each other.
Ankle sprains may occur if the ankle rolls, turns, or twists beyond
its normal range of motion.
Ankle sprains may be caused by awkward foot placement, irregular
surfaces, weak muscles, loose ligaments, or wearing shoes with spiked
heels. The symptoms of a sprain will depend on how severely the
ligaments are stretched or torn but usually include swelling, pain, or bruising.