Excessive ectropion of the calf injuring the medial ligament is usually related to rickets, abnormal cartilage development and sequelae of bone trauma, and needs general treatment, drug treatment and surgical treatment according to the etiology. 1. Rickets: usually related to vitamin D deficiency, need to supplement the required nutrients in time. If it causes bone exostosis and the symptoms are serious, surgery can be taken to correct it. 2. Abnormal cartilage development: also known as cartilage nutritional disorders, usually formed during the embryonic period, such as congenital asymmetry of bone growth, shortening of the limbs, etc., which may cause excessive ectropion of the lower leg. Oral aminoglycoside and other cartilage nutritional drugs can be prescribed, and in severe cases, minimally invasive surgery can be performed for repair. 3. Sequelae of bone trauma: for example, osteoarthritis, traumatic arthritis, etc. This kind of patients need to pay attention to rest and reduce the amount of activity, if necessary, through massage, hot compresses to eliminate swelling and pain. Serious patients need to undergo surgery as soon as possible, such as intra-articular osteotomy. Calf over-turning injuries to the medial ligament, it is recommended that the patient consult a doctor in a timely manner, under the guidance of the physician to understand the severity of the condition and the relevant causes of the disease, and then targeted treatment.