Normal physiological development
It is normal for the baby's lower limbs to bend during their development. During pregnancy, due to the narrow space, the baby's calf will bend inward, which is a normal phenomenon and does not need treatment.
Board fixation
It is recommended that the baby be fixed with wooden boards after falling asleep, that is, the bent part of the calf is bound with wooden boards, so as to keep the blood circulation of the calf so as not to damage other parts.