If the baby’s calves are bent, there are several reasons: 1, affected by genetic factors, such as the parents’ calves are bent, the baby’s calves may be bent by genetic factors. 2, due to vitamin D deficiency, resulting in a lack of calcium among the trace elements, which can cause bone deformities, so the baby’s calves may be bent. 3, due to the parents’ incorrect holding posture, may be in the process of holding the baby’s calves will often be bent. 4.Because the baby’s bones are not formed, soft, so it is easy to bend the state. 4.Because the baby activity is relatively large, often like to use the feet to stir force, or to stir something to make force, often appear to bend the situation occurs.