Leg ulcers can be cured - Explanation by Mr Mark Whiteley a UK expert ...

Wound Care Information Network Venous Ulcerations Etiology: It has been reported that venous ulcerations are the most common type of ulcer affecting the lower extremities. The normal vein has valves that prevent the backflow of blood. When these valves become incompetent, the backflow of venous blood causes venous congestion. Hemaglobin from the red blood cells escapes and leaks into the ...