Clubfoot is an abnormal inward curving of the foot. One of the most common nonmajor birth defects, clubfoot affects a child's foot and ankle, twisting the heel and toes inward. The clubfoot, calf and leg are smaller and shorter than normal. Clubfoot is not painful, the deformity is correctable, and your baby is probably otherwise normal. Approximately one in every 1,000 newborns has clubfoot. Of those, one in three have both feet affected. Two out of three clubfoot babies are boys. Clubfoot is twice as likely if the baby’s parents or their other children also have it. Less severe infant foot problems also are common and sometimes mislabeled as clubfoot.