Summary of medical history, patient sun, 75 years old, Due to the "amputation of the upper knee of the left lower limb"、"ulceration and gangrene of the left lower limb", the wound healing was poor after the operation; the "artificial blood vessel bypass of the femoral artery and the popliteal artery" (femoral and popliteal artificial blood vessels) was performed, and a sinus tract was left under the right groin after the operation.,TCM diagnosis ,sore (lingering syndrome of residual evil),Western medical diagnosis, poor wound healing after operation, amputation stump ulcer, lower limb arteriosclerosis occlusion.,Four diagnostic information, clear mind, healthy spirit, pale complexion, left lower limb stump broken and broken with pain, right anterior thigh area in partial incision and drainage, right foot second toe broken and black, poor appetite, poor sleep, light tongue, greasy fur, yellow fur, pulse string.,Intervention measures ,this case adopts the combination of traditional Chinese and Western medicine. The internal treatment of traditional Chinese medicine is: Supplementing Qi and nourishing Yin, supporting sores and generating muscles, activating blood circulation and unblocking collaterals; External treatment of traditional Chinese medicine: the method of eliminating corruption and regeneration is the main method; Western medicine treatment: improve circulation, nourish nerves, anticoagulant, anti plate, reduce fat, protect stomach and correct anemia.,Curative effect outcome ,the wound healing of the patient is more obvious than that of the previous one, and better curative effect has been achieved. The purpose of this report is to provide some clinical experience for the treatment of poor wound healing after operation, and to learn and exchange with each other.