Deformation of the foot

Skin irritation due to friction is frequently seen with people having an hallux. Also people wearing new new shoes often have after a while skin redness due to friction. When surfaces in contact ( human skin and external object ) move relative to each other, the friction between the two surfaces converts kinetic energy into heat.

Enlargement of bone or tissue ( bunion) around the joint at the base of the big toe (metatarsophalangeal joint).The big toe may turn in toward the second toe (angulation), and the tissues surrounding the joint may be swollen and tender.

Today the term usually is used to refer to the pathological bump on the side of the great toe joint. The bump is the swollen bursal sac and/or an osseous (bony) anomaly on the mesophalangeal joint (where the first metatarsal bone and hallux meet).

Symptoms of bunions include irritated skin around the bunion, pain when walking, joint redness and pain, and possible shift of the big toe toward the other toes. Blisters may form more easily around the site of the bunion as well.

Having bunions can also make it harder to find shoes that fit properly; bunions may force a person to have to buy a larger size shoe to accommodate the width the bunion creates. Wearing high heels also becomes more of a problem for those with bunions as the heel puts pressure on the toes, which may be irritating to most people in general, but particularly for people with bunions.

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