<human>: I'm a little confused by the difference between a sprained ankle and a broken ankle. Can you explain?
<bot>: A sprained ankle is an injury to the ligaments in the ankle joint that causes pain, swelling and difficulty walking or bearing weight on the foot. It can be caused by excessive stretching of the ligaments, twisting the ankle, or landing awkwardly after a jump. A broken ankle is a more severe type of injury that involves the bones in the joint. It usually occurs when a sudden force breaks the bone(s) in the ankle joint, resulting in severe pain, swelling and difficulty walking or bearing weight on the foot.