Diseases of the foot
generally are not limited, that is they are related to or manifest elsewhere in the body. However, the foot is often the first place some of these diseases or a sign or symptom of others appear. This is because of the foot's distance from the central circulation, the heart and its constant exposure to pressures from the ground and the weight of the body.
Dermatologic foot conditions
foot conditions are those related to the skin and nails of the foot. Often there is a distinction made between conditions of the dorsal
skin and plantar
skin. Common examples include callus
thickened skin, fungal infections of the skin (athlete's foot
) or nails (onychomycosis
), viral infection of verrucae
, and ingrowing toenails
which may cause bacterial nail infections (paronychia
Arthritic foot conditions
foot conditions are those which either manifest most often in the foot, are seen frequently in the foot or which have a presentation different from other areas of the body.
restriction to the arterial supply in peripheral artery occlusive disease
may result in painful arterial ulcers
of the ankle and foot, or give rise of gangrene
of the toes and foot. Immobility of a person may result in prolonged pressure applied to the heels causing pressure sores
Impaired venous drainage from the foot in varicose veins may sequentially result in brown haemosiderin discolouration to the ankle and foot, varicose stasis dermatitis and finally venous ulcers.