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Overview
Hammer Toe is caused when the middle joint (PIP) bends down towards the floor (flexion). To compensate, the joints above and below (MTP, DIP) bend up (hyperextend). The result is that the middle part of the toe lifts up. Hammertoe is the most common deformity of the lesser toes (i.e. not the big toe). It tends to only affect one toe, most commonly the second.

Causes
It is possible to be born with a hammer toe, however many people develop the deformity later in life. Common causes include tightened tendons that cause the toe to curl downward. Nerve injuries or problems with the spinal cord. Stubbing, jamming or breaking a toe. Having a stroke. Being a diabetic. Having a second toe that is longer than the big toe. Wearing high heels or tight shoes that crowd the toes and don?t allow them to lie flat. Aging.

Symptoms
Hammer, claw, and mallet toes can cause discomfort and pain and may make it hard to walk. Shoes may rub on your toes, causing pain, blisters, calluses or corns, or sores. Sores can become infected and lead to cellulitis or osteomyelitis, especially if you have diabetes or peripheral arterial disease. If you have one of these health problems and sores develop, contact your doctor.

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
Inserts in your shoes can be used to help relieve pressure on the toes from the deformity. Splints/Straps. These can be used to help re-align and stretch your toes and correct the muscle imbalance and tendon shortening. One of the most common types are toe stretchers like the yogatoe. Chiropody. A chiropodist can remove calluses or corns, areas of hard skin that have formed to make the foot more comfortable.Steroid injections can help to reduce pain and inflammation.

Surgical Treatment
If you have a severe case of hammer toe or if the affected toe is no longer flexible, you may need surgery to straighten your toe joint. Surgery requires only a local anesthetic (numbing medicine for the affected area) and is usually an outpatient procedure. This means you don?t have to stay in the hospital for the surgery.

Prevention
You can avoid many foot, heel and ankle problems with shoes that fit properly. Here's what to look for when buying shoes. Adequate toe room. Avoid shoes with pointed toes. Low heels. Avoiding high heels will help you avoid back problems. Adjustability. Laced shoes are roomier and adjustable.