Want to correct the leg shape, make the leg straight, should be based on specific groups, choose the corresponding treatment, such as orthopedic brace, drug therapy, attention to sitting, orthopedic surgery, etc.. 1, children’s leg correction methods 1, orthopedic brace: children before the closure of the skeleton, you can apply orthopedic brace to correct the leg shape; 2, drug treatment: if the lack of vitamin D, calcium caused by X-leg, O-leg, this case according to medical advice timely supplementation of vitamin D can improve the symptoms; 3, daily care: avoid prolonged standing, appropriate massage and other physical therapy techniques can also help correct the deformity. Second, the adult correction of leg shape 1, sitting posture: maintain a good sitting posture, straighten the legs and clench the knee joints, maintain a certain strength, do not stilt legs, help to modify the leg shape; 2, walking posture: walk with the abdomen and chest, the body weight on the inner thighs, arms relaxed on both sides of the body natural swing, toes slightly outward or out to the front, stride evenly; 3, moderate exercise: by doing some to improve the leg shape exercise, such as hip bridge, squat, plus massage, stretching can help correct the leg shape. In addition, standing against the wall to keep the waist and legs straight, standing for half an hour every day, persistent leg shape will slowly become straight; 4, orthopedic surgery: patients with serious deformity can be corrected through surgery, osteotomy orthopedics can correct the force line of the leg, so that the leg can become straight. In case of inversion or valgus of the knee, along with osteoarthritis and joint degeneration in elderly patients, artificial joint replacement treatment can be considered.