Medial ankle pain is commonly caused by degenerative osteoarthritis of the ankle joint and medial ankle fracture, as follows: a. Degenerative osteoarthritis of the ankle joint: with ageing the cartilage of the ankle joint will undergo extensive damage, the synovial membrane will also develop inflammatory hyperplasia and produce a large amount of fluid, the patient will have medial ankle pain symptoms, and when the medial gap is pressed during physical examination, there will be an increase in pain symptoms, while the patient will have The patient will have limited movement and swelling of the ankle joint. The diagnosis can be confirmed by MRI and X-ray examination. Medial ankle fracture: if the patient has a medial ankle fracture, the patient will suddenly sprain the ankle joint when exercising, thus causing a medial ankle fracture, the patient will have severe pain symptoms on the medial side of the ankle, accompanied by local swelling and limited movement of the ankle joint.