<human>: I have heard that a sprained ankle can cause arthritis. Is that true?
<bot>: Yes, it is true. A sprained ankle can cause arthritis in the joint. Sprains are injuries to ligaments and tendons, which connect muscles to bones. Ankles are joints that connect your foot to your leg bone (tibia). Ligaments and tendons are made of tough tissue that helps hold bones together. When these tissues are injured, they may become swollen and sore. This swelling can cause pain and stiffness in the joint. Over time, this swelling can lead to arthritis.