Pain on the outside of the ankle may be caused by gout, or strained ligaments on the outside of the ankle joint, osteoarthritis and other causes. 1. Gout: after gout involves the ankle, due to urate deposition in the ankle joint area, it will lead to redness, swelling, pain, skin burning and other abnormalities of the ankle, and in serious cases, even gout stones will be formed, which may be manifested as the symptoms of pain on the outside of the ankle. 2. Lateral ankle ligament strain: due to over exertion and improper posture during exercise, it is easy to lead to strain of lateral ankle ligament, which may cause lateral ankle pain. 3. Osteoarthritis: if there is osteoarthritis in the ankle area, the stimulation of inflammation can spread to the lateral side of the ankle, which can lead to the symptoms of lateral ankle pain. There are many other causes of lateral ankle pain, it is recommended to go to the regular hospital for relevant examination and treatment in time to avoid delaying the condition.