What is a Bunion?

The common bunion is a localized area ofstructures of the first metatarsal are no longer
enlargement of the inner portion of the joint at thefunctioning correctly. This biomechanical abnormality
base of the big toe. The enlargement actuallymay be caused by a variety of conditions intrinsic to
represents additional bone formation, often inthe structure of the foot--such as flat feet,
combination with a misalignment of the big toe. Theexcessive ligamentous flexibility, abnormal bone
normal position of the big toe (straight forward)structure, and certain neurological conditions. These
becomes outward-directed toward the smaller toes.factors are often considered genetic. Although no
The enlarged joint at the base of the big toe (theexperts are convinced that poor fitting footwear is
first metatarsophalangeal joint) can become inflamedthe main cause of bunion formation , other sources
with redness, tenderness, and pain. A small fluid-filledconcede only that footwear exacerbates the
sac (bursa) adjacent to the joint can also becomeproblem caused by the original genetic deformity.
inflamed (bursitis) leading to additional swelling,Tight fitting shoes are thought to be the cause of
redness, and pain.bunions in about 90% of patients. Shoes such as high
Bunions are often described as a bump on the sideheels are particularly damaging to the toes. These
of the big toe. But a bunion is more than that. Theshoes have a sloping foot piece and a narrow toe
visible bump actually reflects changes in the bonybox. The slope causes the front of the foot to be
framework of the front part of the foot. With apushed with force into the narrow toe box. The
bunion, the big toe leans toward the second toe,narrow toe box causes the toes to become
rather than pointing straight ahead. This throws thesqueezed together. Depending on factors such as
bones out of alignment, producing the bunion'sduration of wearing constraining footwear, skeletal
"bump."maturity, and individual factors, the toes can become
Most bunions are treatable without surgery.permanently adapted to the new position and lead to
Prevention is always best. To minimize your chancesthe formation of a bunion.
of developing a bunion, never force your foot into aBunions can occur for a number of reasons, but a
shoe that doesn't fit. Choose shoes that conform tocommon cause is wearing shoes that fit too tightly.
the shape of your feet. Go for shoes with wideThey can also develop as a result of inherited
insteps, broad toes and soft soles. Avoid shoes thatstructural defect, injury, stress on your foot or
are short, tight or sharply pointed, and those withanother medical condition. A bunion is an abnormal,
heels higher than 2 1/4 inches. If you already have abony bump that forms on the joint at the base of
bunion, wear shoes that are roomy enough to notyour big toe. Your big toe joint becomes enlarged,
put pressure on it. This should relieve most of yourforcing the toe to crowd against your other toes.
pain. You may want to have your shoes stretchedThis puts pressure on your big toe joint, pushing it
out professionally. You may also try protective padsoutward beyond the normal profile of your foot, and
to cushion the painful area.resulting in pain. Bunions can also occur on the joint of
Bunions are caused by a biomechanical abnormality,your little toe (bunionette).
where certain tendons, ligaments, and supportive