Ulcer

An ulcer (Latin ulcus) is a deep wound that extends beyond the top layer of skin and heals poorly. On the foot it usually occurs in people with diabetic foot syndrome or circulatory disorders. A pressure ulcer under the sole of the foot is also called malum perforans.

How does an ulcer develop?

It often starts harmlessly: under a thick callus or a corn, constant pressure leads to bleeding and finally to a wound. Anyone who feels no pain because of neuropathy keeps walking on it – and the wound grows.

Important

An open wound on the foot always needs prompt medical treatment – with diabetes ideally at a specialist foot clinic. Podiatrists do not treat open wounds themselves, but work closely with doctors and, through regular callus removal, play a decisive role in preventing ulcers from forming in the first place.