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Overview

A bunion is a firm, painful bump that forms over a bony bulge at the base of the big toe. In most cases, the big toe joint also is enlarged and has degenerative arthritis. The toe also may be pushed toward the second toe (hallux valgus). Bunions tend to be inherited, but they also are common in the following groups. Women who wear high heels. People who wear shoes that are too narrow or too pointed. People with flatfeet. All of these situations force the big toe to drift toward the little toes, and this can cause bunions to form.

Causes
Bunions are caused by a combination of factors, including a familial predisposition, and wearing high-heeled shoes that are tight and narrow at the front. Most bunions occur in women. Sometimes other foot problems accompany bunions, including calluses and hammertoes (angling downward of the lesser toes).
SymptomsBunions starts as the big toe begins to deviate, developing a firm bump on the inside edge of the foot, at the base of the big toe. Initially, at this stage the bunion may not be painful. Later as the toes deviate more the bunion can become painful, there may be redness, some swelling, or pain at or near the joint. The pain is most commonly due to two things, it can be from the pressure of the footwear on the bunion or it can be due to an arthritis like pain from the pressure inside the joint. The motion of the joint may be restricted or painful. A hammer toe of the second toe is common with bunions. Corns and calluses can develop on the bunion, the big toe and the second toe due to the alterations in pressure from the footwear. The pressure from the great toe on the other toes can also cause corns to develop on the outside of the little toe or between the toes. The change in pressure on the toe may predispose to an ingrown nail.

Diagnosis
Your doctor is very likely to be able to diagnose your bunion simply by examining your foot. Even before that, he or she will probably ask about your family and personal medical history and evaluate the types of shoes you wear. You'll be asked about your symptoms, when they started and when they occur. You may also be asked to flex your toe so that your doctor can get an idea of your range of motion. He or she may order x-rays in order to determine the extent of your deformity.

Non Surgical Treatment
Long-term treatment of bunions must be directed towards re-balancing the foot, so that we no longer walk with our weight forced on to the inner border of the foot. This is accomplished by controlling and reducing pronation with the use of a high quality arch support or custom made orthotics. These devices comfortably re-balance the feet and overcome pronation. This reduces the abnormal weight forces on the big toe and its metatarsal head, allowing the feet to function normally. As a result, the deformity should not worsen, and the pain should gradually subside. If the foot is not re-balanced, the deformity and pain will become worse.


Surgical Treatment
Conservative bunion treatment methods help to reduce the symptoms but they cannot undo changes in the bone to fully correct the condition. If the pain becomes severe and it starts to affect your daily life, then foot bunion surgery may be the best option to correct a hallux abducto valgus. There are a number of different surgical options, depending on the severity of the bony deformity. The two most common types of surgery are Osteotomy. This is the most common type pf surgery and involves removing part of the bony lump and realigning the toes. It is also known as a bunionectomy or exostectomy. The ligaments around the big toe may also need realigning and this will be done at the same time if necessary. Fusion.This is where the joint at the base of the big toe (metatarsophalangeal joint) is fused together, known as an arthrodesis. This is only indicated in severe cases or if other treatments have failed as it severely limits the movement of the big toe.

Prevention
Wear insoles and well-fitting shoes to help slow down the progression of bunions and alleviate discomfort. Cushioning can also help alleviate discomfort. Consider wearing shoes with a wide toe box so they don't crowd your toes. Children can also develop bunions and should wear properly fitting shoes as their feet are still developing.