Most foot problems result from anatomic disorders or abnormal function of articular or extra-articular structures (see figure Bones of the foot Bones of the foot ). Less commonly, foot problems reflect a systemic disorder (see table ).
In people with diabetes and people with peripheral vascular disease, careful examination of the feet, with evaluation of vascular sufficiency and neurologic integrity, should be done at least twice a year. People with these diseases should examine their own feet at least once a day.
The feet are also common sites for corns and calluses Calluses and Corns Calluses and corns are circumscribed areas of hyperkeratosis at a site of intermittent pressure or friction. Calluses are more superficial, cover broader areas of skin, and are usually asymptomatic... read more and infections by fungus Tinea Pedis (Athlete's Foot) Tinea pedis is a dermatophyte infection of the feet. Diagnosis is by clinical appearance and sometimes by potassium hydroxide wet mount, particularly if the infection manifests as hyperkeratotic... read more , bacteria Overview of Bacteria Bacteria are microorganisms that have circular double-stranded DNA and (except for mycoplasmas) cell walls. Most bacteria live extracellularly. Some bacteria (eg, Salmonella typhi; Neisseria... read more , and viruses Warts Warts are common, benign, epidermal lesions caused by human papillomavirus infection. They can appear anywhere on the body in a variety of morphologies. Diagnosis is by examination. Warts are... read more .
See also table and table .
Bones of the foot