About one in every five leg ulcer patients has a problem with the arteries to the affected leg. In many, this is the only cause of the ulcer. In some, the arterial issue prevents successful treatment of an ulcer due another cause such as poor nerve function. Arterial leg ulcers often occur on the toes, on pressure areas of the feet and around the ankle. They are more common in smokers. In many, but not all, patients with an arterial leg ulcer, flow in the affected artery can be improved in order to heal the ulcer. These procedures are performed in Galway University Hospital.