Varicose veins are enlarged, swollen, and twisting veins, often appearing blue or dark purple. They happen when faulty valves in the veins allow blood to flow in the wrong direction or to pool. A venous ulcer, sometimes called a varicose ulcer, is a leg wound that happens when the leg veins don't circulate blood back toward the heart. Blood can back up in the veins, building up pressure on the skin, which can cause an open sore to form.
Day care treatment for varicose vein and venous ulcers of the lower limb