Foot problems occur because your feet are extremely complex structures composed of bones, joints, ligaments, muscles, tendons, nerves, blood vessels, and skin. They may develop certain disorders (some of which originate in other parts of the body). They are also subject to injuries and other problems caused by normal wear and tear over years of supporting the weight of your body and making it possible for you to stand, walk, run, and jump. The most obvious symptoms of foot trouble are pain and dysfunction (limping, favoring one foot or the other, inability to put weight on the heel and/or the toes).
Foot pain can be due to ill-fitting, inappropriate footwear that cramps your feet; injuries that keep you from walking well–or at all; sprains which stretch or tear ligaments (which connect bones); and stress fractures of bones in the foot, which can result from accidents or overuse while engaging in sports or exercise. Just as foot disorders may originate elsewhere in the body, problems experienced in the feet can cause difficulties in other parts of the body.