It is caused by a variety of microorganisms, as well as mycobacteria.
Ulcers occur on uncovered parts of the body, primarily on anterolateral aspect of the lower limbs and may erode muscles and tendons.
Adequate footwear is significant to prevent trauma. Common good health and nutrition also reduce ulcer risk. Adequate and prompt cleansing and action of ankle and leg skin breaks is also important. Improving hygiene and nutrition may help.