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Overview
Hammertoes deformities can be painful and unsightly. These toe deformities can be the result of a muscle/tendon imbalance or often the end stage result of some systemic disease such as diabetes or arthritis, especially Rheumatoid arthritis. Hammertoe deformities are progressive and can be prevented.

Causes
Hammer toe is often caused by wearing shoes that do not fit properly. If shoes are too small either in length or width, then the toes are held in a shortened position for long periods and the muscles eventually shorten and pull the toes into the bent position. Alternatively it can be caused by overactivity in the extensor digitorum dongus muscle (right) and a weakness in the counteracting muscle under the foot, such as flexor digitorum longus. Sometimes it can be a congenital condition, meaning it is present from birth. It is also more common in those with arthritis in the foot or diabetes.

Symptoms
Common symptoms of hammertoes include pain or irritation of the affected toe when wearing shoes. corns and calluses (a buildup of skin) on the toe, between two toes, or on the ball of the foot. Corns are caused by constant friction against the shoe. They may be soft or hard, depending upon their location. Inflammation, redness, or a burning sensation. Contracture of the toe. In more severe cases of hammertoe, open sores may form.

Diagnosis
The exam may reveal a toe in which the near bone of the toe (proximal phalanx) is angled upward and the middle bone of the toe points in the opposite direction (plantar flexed). Toes may appear crooked or rotated. The involved joint may be painful when moved, or stiff. There may be areas of thickened skin (corns or calluses) on top of or between the toes, a callus may also be observed at the tip of the affected toe beneath the toenail. An attempt to passively correct the deformity will help elucidate the best treatment option as the examiner determines whether the toe is still flexible or not. It is advisable to assess palpable pulses, since their presence is associated with a good prognosis for healing after surgery. X-rays will demonstrate the contractures of the involved joints, as well as possible arthritic changes and bone enlargements (exostoses, spurs). X-rays of the involved foot are usually performed in a weight-bearing position.

Non Surgical Treatment
If the toes are still mobile enough that they are able to stretch out and lay flat, the doctor will likely suggest a change of footwear. In addition, she may choose to treat the pain that may result from the condition. The doctor may prescribe pads to ease the pain of any corns and calluses, and medications ranging from ibuprofen to steroid injections for the inflammation and pain. Other options for non-surgical treatments include orthotic devices to help with the tendon and muscle imbalance or splinting to help realign the toe. Splinting devices come in a variety of shapes and sizes but the purpose of each is the same: to stretch the muscles and tendon and flatten the joint to remove the pain and pressure that comes from corns.

Surgical Treatment
If this fails or if treatment is not sought until the toes are permanently misaligned, then surgery may be required. Surgery may involve either cutting the tendon or fusing the joint. Congenital conditions should be treated in early childhood with manipulations and splinting.