What Causes Bunions?

Overview
Bunions
A bunion is an abnormal, bony bump that forms on the joint at the base of your big toe. Your big toe joint becomes enlarged, forcing the toe to crowd against your other toes. This puts pressure on your big toe joint, pushing it outward beyond the normal profile of your foot, and resulting in pain. Bunions can also occur on the joint of your little toe (bunionette). Bunions can occur for a number of reasons, but a common cause is wearing shoes that fit too tightly. They can also develop as a result of inherited structural defect, injury, stress on your foot or another medical condition.

Causes
The main cause of bunions is a mechanical imbalance in the feet which is usually inherited. The mechanical imbalance is known as overpronation, where the feet roll in towards the arch and big toe. This added weight and stress transfer towards the big toe, causes instability in the structures of this area and a bunion develops.
SymptomsBunions may cause no pain at first. But as the big toe begins to turn in towards the other toes, people with bunions usually experience redness, pain, swelling, and tenderness in the area around the joint. Pressure inside the joint or from footwear pressing against the bunion may also cause discomfort. As the affected toe curves closer to the other toes on the foot, these toes can become painful as well. Complications of bunions include corns, calluses, hammer toe, and ingrown toenails. Other complications include irritation of the nerves surrounding the bunion area. Excess rubbing of the bunion against the footwear may lead to changes in the skin, resulting in corns or calluses. Hammer toe is a deformity of the toe immediately next to the big toe. A hammer toe is slightly raised and points upwards from the base and downwards at the end of the toe. Ingrown toenails can result from increased pressure from the big toe on the other toes. There may also be a decrease in the amount a person can move the joint affected by the bunion. Irritation of the nerves will feel like burning or decreased sensation.

Diagnosis
A doctor can very often diagnose a bunion by looking at it. A foot x-ray can show an abnormal angle between the big toe and the foot. In some cases, arthritis may also be seen.

Non Surgical Treatment
There are two ways to treat this pathological foot conditions, conservatively and surgically. Conservative treatment is the first line treatment which consists of splints and orthotic care to reduce the causative factors. Realigning the foot with the aid of an orthotic helps prevent further degeneration and/or reduce symptoms of HAV in any stage of its deformity. Along with orthotic care, patients may require debridement of corns and calluses produced due to extra forces produced on the foot. Orthotics will also help the function of the big toe joint as it allows it to bend in the correct position. Footwear advice is also essential in the conservative care of bunions, HAV, there may be a need to change footwear, so it is able to fit properly and be compliment with orthotics. Surgical correction of bunions, HAV is available, however should only be considered when conservative care has failed to reduce the onset of bunions, HAV. It is only considered if there is a clear sign that it will induce a better quality of life for the patient.
Bunions

Surgical Treatment
Bunion surgery is both an art and a science, and it should always be performed by a healthcare professional who understands the multifaceted mechanics of your first MTP and its surrounding structures. Bunion surgery involves more than just removing the bump at the base of your big toe, and it is best followed up with supportive therapies to prevent a recurrence of your health problem.

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