A common deformity of the foot in which either the second, third, or fourth toe is bent at the middle joint, so that the tip of the toe is bent downward while the middle of the toe is cocked upward resembling a hammer. The hammer toe deformity is the most common deformity of the small toes. If not treated, a hammer toe may become rigid and require surgical correction in order to correct the deformity. Symptoms and signs associated with hammer toe include corns or calluses on the affected toe and pain in the affected area. It may be difficult for people suffering from hammer toe to find comfortable shoes. A common cause of hammer toe is wearing shoes that do not fit properly. Poorly-fitting shoes can hold the toes in an abnormal position and result in tightening of the muscles required to maintain that position. In particular, shoes that have high heels and are narrow at front tend to push the toes into an abnormal, bent position.