In case of newborn babies leg binding to prevent leg curvature is not scientific. If the infant has O-shaped legs, he or she needs to be instructed by a doctor to have the legs scientifically strapped to correct them. Parents usually tie the legs of newborn babies because they think that tying the legs of newborn babies will straighten their legs as they are bent after birth. It is not known that leg bending is a normal physiological phenomenon in newborns. It is mainly caused by the underdevelopment of the muscles on both sides of the legs. Usually, with the gradual development of newborns, the muscles on both sides of the legs are gradually developed, and the symptoms of leg bending can be gradually improved. If parents tie the legs of newborn babies, it may have some adverse effects on the development of newborn babies’ legs. Because in the process of tying the legs, it strictly restricts the movement of the baby’s legs, which is unfavorable to the development of the newborn’s legs. For infants with O-shaped legs, leg binding and orthopedics need to be reasonably carried out under the guidance of the doctor, which is conducive to alleviating the symptoms of O-shaped legs. Especially for children with mild symptoms of O-legs, the normal anatomical structure of the knee joint may be gradually restored through the orthopedic treatment of leg binding.