A Hammer toes is a contracture of the toes as a result of a muscle imbalance between the tendons on the top and the tendons on the bottom of the toe. They can be flexible or rigid in nature. When they are rigid, it is not possible to straighten the toe out by manipulating it. Frequently, they develop corns on the top of the toe as a result of rubbing on the shoe. They may also cause a bothersome callous on the ball of the foot. This occurs as a result of the toe pressing downward on the bone behind the toe. This area then becomes prominent and the pressure of the bone against the ground causes a callous to form.
Causes
Hammertoe commonly develops because of structural changes that take place over time in the muscles and tendons that bend the toes. People with certain medical conditions, such as diabetes, are at risk for developing hammertoe. It can be an inherited condition for some people. Other causes include trauma and wearing shoes that are too tight, narrow, or have high heels. The toe next to the big toe (second toe) is most frequently affected by hammertoe.

The most common symptoms of hammertoes include. The toe is bent upward at the middle toe joint, so that the top of this joint rubs against the top of the shoe. The remainder of the toe is bent downward. Pain upon pressure at the top of the bent toe from footwear. The formation of corns on the top of the joint. Redness and swelling at the joint contracture. Restricted or painful motion of the toe joint. Pain in the ball of the foot at the base of the affected toe. This occurs because the contracted digit puts pressure on the metatarsal head creating callouse and pressure on the ball of the foot.
Diagnosis
Most health care professionals can diagnose hammertoe simply by examining your toes and feet. X-rays of the feet are not needed to diagnose hammertoe, but they may be useful to look for signs of some types of arthritis (such as rheumatoid arthritis) or other disorders that can cause hammertoe.
Non Surgical Treatment
Mild hammer toe in children can be treated by manipulating and splinting the affected toe. The following changes in footwear may help relieve symptoms. Wear the right size shoes or shoes with wide toe boxes for hammertoes comfort, and to avoid making hammer toe worse. Avoid high heels as much as possible. Wear soft insoles to relieve pressure on the toe. Protect the joint that is sticking out with corn pads or felt pads. A foot doctor can make foot devices called hammer toe regulators or straighteners for you, or you can buy them at the store. Exercises may be helpful. You can try gentle stretching exercises if the toe is not already in a fixed position. PIcking up a towel with your toes can help stretch and straighten the small muscles in the foot.
Surgical Treatment
Sometimes when the joints are removed the two bones become one as they are fused in a straightened position. Many times one toe will be longer than another and a piece of bone is removed to bring the toes in a more normal length in relation to each other. Sometimes tendons will be lengthened, or soft tissue around the joints will be cut or rebalanced to fix the deformity. Angular corrections may also be needed. The surgeon may place fixation in your foot as it heals which may include a pin, or wires.