
Hammer toe is defined as a deformity in the toe where part of the toe is permanently bent downward resembling a hammer. Two related conditions are mallet toe and claw toe which effect different toe joints in slightly different ways. The key difference is that Hammer Toe tends to effect the middle joint in the toe (note: not the middle toe, the middle toe joint). The disease is usually associated with the second largest toe but can effect the third or fourth toe as well. Mallet toe effects the uppermost toe joint whereas claw toe is caused by the tow being held in a cramped ?claw-like? position.
Causes
But what causes the imbalance of the tendons and muscles in the first place so that they begin to pull and bend the joint? A bad fitting shoe could be the cause but it usually isn?t the primary cause. Many people are genetically predisposed to hammertoe, and the condition begins to progress more quickly when they wear shoes that fit poorly, for example pointy toes, high heels, or shoes that are too short. Hammertoe may also be caused by damage to the joint as a result of trauma.

Symptoms
Hammer toes can cause problems with walking and lead to other foot problems, such as blisters, calluses, and sores. Pain is caused by constant friction over the top of the toe?s main joint. It may be difficult to fit into some shoe gear due to the extra space required for the deformed toe. In many cases there will be pain on the ball of the foot over the metatarsals along with callus formation. This is due to the toes not functioning properly, failing to properly touch the ground during the gait cycle. The ball of the foot then takes the brunt of the ground forces, which causes chronic pain.
Diagnosis
Hammer toes may be easily detected through observation. The malformation of the person's toes begin as mild distortions, yet may worsen over time - especially if the factors causing the hammer toes are not eased or removed. If the condition is paid attention to early enough, the person's toes may not be permanently damaged and may be treated without having to receive surgical intervention. If the person's toes remain untreated for too long, however the muscles within the toes might stiffen even more and will require invasive procedures to correct the deformity.
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. (Note: 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 specialist (Pedorthist) 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
Surgery to correct for a hammertoe may be performed as a day procedure. There are several different types of procedures that can be used depending on the foot structure and if the deformity is flexible or rigid.