If a newborn’s legs are a little bent, to determine whether it is normal, need to be analyzed according to the specific circumstances. 1, belongs to the normal phenomenon. Because the child is relatively young, the flexion of the leg is relatively high, the child’s muscle tone is also relatively high, which will show a slight bending of the leg. As the child grows older, the bones and tendons develop normally, the child’s leg and foot flexion will be significantly improved, parents need not worry too much. 2, pathological bending and flexion. Often seen in children with very high muscle tone, such as cerebral palsy or infantile developmental delay, the child’s bending belongs to the abnormal, the need for timely rehabilitation training, otherwise it will lead to long-term leg bending, which is not conducive to the child walking posture good-looking. In addition, if the child has a cranio-cerebral injury, there will also be leg curvature, the need for timely brain treatment, such as brain tumors, to timely surgery to remove.