
hammertoe, also called hammer toe, deformity of the second, third, or fourth toe in which the toe is bent downward at the middle joint (the proximal interphalangeal [PIP] joint), such that the overall shape of the toe resembles a hammer. Most cases of hammertoe involve the second toe, and often only one or two toes are affected. In rare cases when all the toes are involved, a thorough neurological assessment is necessary to evaluate for underlying nerve or spinal cord problems.
Causes
The APMA says that hammertoe can result from a muscle imbalance in the foot that puts undue pressure on the joints, ultimately causing deformity. Inherited factors can contribute to the likelihood of developing hammertoe. Arthritis, stroke or nerve damage from diabetes or toe injuries such as jamming or breaking a toe can affect muscle balance in the foot, leading to hammertoe. The Mayo Clinic says that wearing improper shoes often causes hammertoe. Shoes that squeeze the toes, such as those with a tight toe box or with heels higher than two inches, can put too much pressure on the toe joints.

The middle joint of the toe is bent. The end part of the toe bends down into a claw-like deformity. At first, you may be able to move and straighten the toe. Over time, you will no longer be able to move the toe. It will be painful. A corn often forms on the top of the toe. A callus is found on the sole of the foot. Walking or wearing shoes can be painful.
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. If the deformed toe is very painful, your doctor may recommend that you have a fluid sample withdrawn from the joint with a needle so the fluid can be checked for signs of infection or gout (arthritis from crystal deposits).
Non Surgical Treatment
A number of approaches can be undertaken to the manage a hammer toe. It is important that any footwear advice is followed. The correct amount of space in the toe box will allow room for the toes to function without excessive pressure. If a corn is present, this will need to be treated. If the toe is still flexible, it may be possible to use splints or tape to Hammer toes try and correct the toe. Without correct fitting footwear, this is often unsuccessful. Padding is often used to get pressure off the toe to help the symptoms. If conservative treatment is unsuccessful at helping the symptoms, surgery is often a good option.
Surgical Treatment
There are several surgical techniques used to treat hammertoes. When the problem is less severe, the doctor will remove a small piece of bone at the involved joint and realign the toe joint. More severe hammer toes may need more complicated surgery.