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Overview
The smallest four toes of each foot have three bony segments connected by two joints. Hammertoe is a deformity in which one or more of the small toes develops a bend at the joint between the first and second segments. The tip of the toe turns downward, making it look like a hammer or claw. The second toe is the one most often affected. Hammertoes may be more likely to occur when the second toe is longer than the first toe or when the arch of the foot is flat.

Causes
If a foot is flat (pes planus, pronated), the flexor muscles on the bottom of the foot can overpower the others because a flatfoot is longer than a foot with a normal arch. When the foot flattens and lengthens, greater than normal tension is exerted on the flexor muscles in the toes. The toes are not strong enough to resist this tension and they may be overpowered, resulting in a contracture of the toe, or a bending down of the toe at the first toe joint (the proximal interphalangeal joint) which results in a hammertoe. If a foot has a high arch (pes cavus, supinated), the extensor muscles on the top of the foot can overpower the muscles on the bottom of the foot because the high arch weakens the flexor muscles. This allows the extensor muscles to exert greater than normal tension on the toes. The toes are not strong enough to resist this tension and they may be overpowered, resulting in a contracture of the toe, or a bending down of the toe at the first toe joint (the proximal interphalangeal joint) which results in a hammertoe.

Symptoms
If the toes remain in the hammertoe position for long periods, the tendons on the top of the foot will tighten over time because they are not stretched to their full length. Eventually, the tendons shorten enough that the toe stays bent, even when shoes are not being worn. The symptoms of hammertoe include a curling toe, pain or discomfort in the toes and ball of the foot or the front of the leg, especially when toes are stretched downward, thickening of the skin above or below the affected toe with the formation of corns or calluses, difficulty finding shoes that fit well. In its early stages, hammertoe is not obvious. Frequently, hammertoe does not cause any symptoms except for the claw-like toe shape.

Diagnosis
The earlier a hammertoe is diagnosed, the better the prognosis and treatment options. Your doctor will be able to diagnose your hammertoe with a simple examination of the foot and your footwear. He or she may take an x-ray to check the severity of the condition. You may also be asked about your symptoms, your normal daily activities, and your medical and family history.

Non Surgical Treatment
Conservative treatment starts with new shoes that have soft, roomy toe boxes. Shoes should be one-half inch longer than your longest toe. For many people, the second toe is longer than the big toe.) Avoid wearing tight, narrow, high-heeled shoes. You may also be able to find a shoe with a deep toe box that accommodates the hammer toe. Or, a shoe repair shop may be able to stretch the toe box so that it bulges out around the toe. Sandals may help, as long as they do not pinch or rub other areas of the foot.

Surgical Treatment
Toe Relocation procedures are ancillary procedures that are performed in conjunction with one of the two methods listed about (joint resection or joint mending). When the toe is deformed (buckled) at the ball of the foot, then this joint often needs to be re-positioned along with ligament releases/repair to get the toe straight. A temporary surgical rod is needed to hold the toe aligned while the ligaments mend.

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.