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Overview

A bunion is an abnormal bump, or bony enlargement that forms at the base of your big toe. In the early stages, the bunion may be small and the side of your foot may be slightly swollen. As it progresses, the bump gets larger and becomes increasingly painful. Your big toe may point towards your other toes, rather than straight. Shoes may be uncomfortable to wear and add to the irritation of the joint.

Causes
Bunions are a result of complex biomechanical changes that occur in your feet. The type of footwear that you wear does cause bunions. We know that foot bunions occur in about 30% of the population of most Western countries but only 3% in Eastern countries. They are seen most commonly in women and become more common as people get older. Tight-fitting shoes are thought to be the main cause of bunions.. Shoes such as high heels and shoes with tight toe boxes (eg womens fashion shoes and cowboy boots) are particularly damaging to the toes. These shoes have a sloping foot bed and a narrow toe box. The slope causes the front of the foot to bear your weight, which encourages your forefoot to widen. Also, the angle pushes your toes into the narrow toe box, causing the toes to become angled and squeezed together.
SymptomsA bunion, also called a hallux valgus, is a bony prominence on the inside of the big toe, caused by a misalignment of the joint. The overlying skin maybe swollen, red and tender. Bunions are often painful and can limit what shoes you can wear.

Diagnosis
Before examining your foot, the doctor will ask you about the types of shoes you wear and how often you wear them. He or she also will ask if anyone else in your family has had bunions or if you have had any previous injury to the foot. In most cases, your doctor can diagnose a bunion just by examining your foot. During this exam, you will be asked to move your big toe up and down to see if you can move it as much as you should be able to. The doctor also will look for signs of redness and swelling and ask if the area is painful. Your doctor may want to order X-rays of the foot to check for other causes of pain, to determine whether there is significant arthritis and to see if the bones are aligned properly.

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
When deciding whether to have bunion surgery, there are several things to consider including your age, in children, bunion surgery is often delayed because of the risk of the bunion returning, your medical history and general health, problems with wound healing and infections are more likely in certain conditions such as diabetes, you?re also more likely to develop problems if your bunion is caused by a condition such as rheumatoid arthritis, your occupation and lifestyle, bunion surgery can make your toes less flexible, and you may be unable to return to the same level of physical activity, your expectations of surgery, bunion surgery has about an 85% success rate, but there's no guarantee that your foot will be perfectly straight or pain-free; the success of surgery depends on the type of procedure, the experience of the surgeon and your ability to rest after the operation, the severity of your symptoms, surgery will usually only be recommended if your bunions are causing considerable pain and non-surgical treatments haven't been unsuccessful (because of the associated risks and complications).