The scientific name of “old rotten feet” is called chronic ulcers of the lower limbs, often accompanied by varicose veins in the lower limbs, or foot ulcers caused by diabetes, because of poor blood or nerve nutrition in the lower leg, ulcers often recur, good and bad, lasting for months or years to delay, to patients and families in the body, mental and economic bring great burden. How to treat old rotten feet has become a very difficult problem in medicine. Recently, we have treated many cases of chronic venous ulcers of lower limbs, and obtained satisfactory results by using laser minimally invasive varicose vein closure, trauma negative pressure suction VSD technique combined with trauma skin grafting.