Newborn baby legs a little bent, is due to the uterus space is relatively small, the baby had to put the legs curled up, is a normal phenomenon.
Because the baby in the uterus all in a state of flexion, after birth because the hip joint is not yet fully developed, the body is in a supine position under the influence of gravity, resulting in a mild posture muscle response, thus appearing limbs flexion, so the newborn baby legs a little bent, is a normal phenomenon.
There are a small number of newborns calves to the inner side of the bend, such as O-shaped, but in fact this situation is not certain to suffer from rickets or skeletal deformities, because the children are growing individuals, plasticity is great, great changes, so may be with the growth and development, the legs gradually become straighter, so the newborn baby leg bends are mostly physiological phenomena.
Newborn baby legs a little bent, there may be other reasons, such as neonatal rickets, etc., it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.