This is a question asked by a patient’s family on the phone last night, they went to the provincial hospital to do the skin implant surgery, the area is not small, but last night not long after the skin began to black, the basic judgment is the failure of the skin implant. Implantation is a common surgical procedure, but there are conditions that affect the success of implantation, I will briefly explain the following points: a. The patient’s own situation. The patient’s diabetes is one of them. High blood sugar itself will affect the wound healing. In addition, there are hypertension, lipid, phlebitis, etc.; Second, the thickness of the skin graft. Generally, the thinner the flap, the easier it is to survive, and the thicker the flap, the more difficult it is to survive. However, the thinner the flap is, the worse the effect is, and the recipient area is prone to contracture, while the donor area has relatively small scars; third, the condition of the trauma. If the trauma is clean and there is fresh granulation tissue, the chance of survival of the skin graft is relatively high. If there is trauma infection, especially sepsis and Staphylococcus aureus infection, the skin flap is easily eaten by bacteria and does not survive easily; IV. It is related to tissue oxygen and blood supply. The trauma surface is like a piece of soil, and the skin implant is like planting a crop. If the soil is fertile, the crop will definitely live easily. In diabetic foot patients, the lower extremity is often associated with vascular disease leading to ischemia, and the flap is also difficult to survive; v. Related to the surgical operation. The skin implant is often surgically done, but the tissues of diabetic patients are different from those of regular people, and then following the same method will not work; sixth, post-surgical treatment. The most worrying thing about skin implants is the infection. After the implant is sutured, it is easy to form a dense environment, which will lead to anaerobic bacteria breeding and multiplying, and eventually the implanted skin will be infected. This is one of the reasons why I do not advocate skin implant treatment. Of course, we cannot say that this method itself does not work, but we need to strictly evaluate the indications and contraindications of patients, and patients with better expected results can do it, otherwise it must not be done! If done already infected, you need to take down the necrotic skin, clean the wound, and then apply a topical Chinese ointment with the effect of eliminating decay and regenerating the muscle, a combination of Chinese and Western medicine treatment, the wound is able to naturally grow healthy skin tissue to.