The common causes of ankle pain in early stage are acute synovitis of ankle joint, osteoarthritis of ankle joint, gout and other causes. 1. Acute synovitis of the ankle joint: when the patient’s ankle joint is cooled at night, a large amount of synovial fluid leaks out of the synovial membrane and gathers inside the joint, acute synovitis of the ankle joint will be formed, which is specifically manifested as pain in the ankle joint, and the pain is more intense when walking. 2. Osteoarthritis of ankle joints: Osteoarthritis of ankle joints is caused by bony degeneration of the joints, because the joint space becomes narrower, cartilage wear and tear and trigger the pain of the ankle, the stiffness of the joints is felt in the morning after waking up and accompanied by pain, the longer the time of walking, the more intense the pain. 3. Gout: Gout is a disease caused by high uric acid content in the body, and the diseased part may be located in the ankle. It is characterized by pain and swelling in the ankles, which need to be treated in time. In addition, it is also possible that the patient has ankle ligament damage, ankle dislocation and other reasons. Therefore, it is recommended that patients with early ankle pain should seek early medical examination and treatment according to the results of the examination.