Children’s XO legs can be corrected by supplementation, immobilization, osteotomy and orthopedic methods. It is recommended to go to the hospital for relevant examination and choose the appropriate method for correction under the guidance of the doctor. 1. Nutritional supplementation: XO-legs may be caused by vitamin D deficiency rickets, children need to be given appropriate amount of vitamin D and calcium supplements to promote bone development, so as to improve the situation of XO-legs. 2. Fixation: children’s XO legs may be caused by the imbalance of epiphyseal development, can be fixed on both sides of the epiphyseal steel plate, so as to correct the X-shaped legs. 3. Osteotomy: If the epiphysis has been closed and the general treatment is not effective, it is recommended to go to the hospital in time to correct the XO shaped leg through the distal femur osteotomy and proximal tibia osteotomy. When children have XO-shaped legs, it is recommended to go to the hospital in time for relevant examinations, and choose the appropriate treatment under the guidance of the doctor for timely treatment. In daily life, it is necessary to appropriately increase exercise, more sunshine, and supplement the absorption of vitamin D.