(1) Sit in a chair, put your hands backwards, put an object (which can be thinned from thick to thin) at your ankles, put your knees together, then lift your straight leg to the level and fall again 15-20 times. X3 Group.
(2) Sit on the ground, bend your knees, spread your knees outward, keep your feet opposite, bend your arms, put your hands on the inside of the knee joint, and press the knee joint hard until it reaches the maximum for 2 seconds, and then recover.
(3) Sit with your legs straight, put your hands on the ground, put a soft object (such as a ball) between your knees, tie your ankles with a rubber band, and practice for 5 minutes. Let your calf grip the object hard.
(4) The legs are divided into two places, and the knees are separated to both sides as far as possible. Hold your chest out, bend your knees, slowly raise your heel, then drop it, and repeatedly raise and drop your heel until your calf feels sore.
(5) Kick the shuttlecock with the calf inward and the legs alternating.
If the distance between the medial malleolus is 3-6cm, it can be treated by non-violent surgery: massage the lateral thigh muscles during the day, bring the ankle and femoral condyle together at night after the child falls asleep and tie them with bandages or splints, and gradually correct them; Supplement calcium and vitamin D and get more sunshine.
If the medial malleolus distance is 6-9cm, it can help to carry out a series of treatments: (1) lateral epiphyseal block of knee joint; (2) supracondylar osteotomy of femur. You can contact an orthopedic surgeon to get up the courage to ask about correction methods (including surgery).