The decellularized allogeneic dermis penis lengthening and thickening surgery is not related to disease treatment, but is a surgery to improve the quality of life and male confidence, just like women do double eyelid plastic surgery, there is no absolute indication criteria, need to discuss the need for surgery with the doctor and the patient. A, liposuction, lengthening, thickening combined surgical procedure: 1, anesthesia: routine sterilization and laying of sterile sheets, the patient to take a supine position, anesthesia, marking the proposed liposuction area of the lower abdomen; 2, subcutaneous fat layer injection: saline, 2% lidocaine and epinephrine configuration into the swelling solution, in the left iliac and right groin respectively, take a small incision of about 0.5cm, the swelling solution into the lower abdomen liposuction area of the 3.Liposuction of the pubic mound: inject 3mm blunt-tipped liposuction needle into the subcutaneous fat layer, connect the hydrodynamic liposuction machine, and fan-shaped uniform suction from deep to superficial in the subcutaneous fat layer; 4.Lengthening of the penis: select a horizontal finger above the root of the penis below the pubic bone, make an arc-shaped transverse small incision, cut the skin, subcutaneous tissue and fascia layer by layer, expose the superficial suspensory ligament of the penis under the pubic bone, completely sever the superficial suspensory ligament, and expose the deep suspensory ligament. After exposing the deep suspensory ligament and partially severing the deep suspensory ligament, the decellularized allograft dermis was folded and placed into the penile corpus cavernosum and the pubic bone gap, and fixed with the surrounding soft tissues using 4-0 absorbable sutures; 5. Subsequently, the subcoronal incision of the penis was selected to make a circular incision, the penile foreskin was completely dragged to the root of the penis, the decellularized allogeneic dermis was covered on the anterior, posterior and ventral part of the penile body, and it was fixed between the deep and superficial fascia of the penis using 4-0 absorbable sutures, after which the wound was closed layer by layer; 6. compression bandage: the penile wound was wrapped with compression using an elastic bandage, and the abdominal liposuction area was pressurized using a tummy tuck. Second, is decellularized allograft dermis safe? 1, the biggest problem of allograft is the rejection reaction, which is mainly caused by the epidermal cells, fibroblasts and endothelial cells in the dermis and other cell components. The ADM bio patch is a non-cellular component of extracellular matrix protein and collagen, which completely removes cellular components and type I and II cytocompatibility antigens, fully retaining elastin, keratin sulfate, laminin and collagen of allogeneic dermis, with high histocompatibility, and will not induce rejection reaction. 2.ADM biological patch can provide sufficient amount of dermal tissue for the wound to reduce the formation of scar and contracture; the rich collagen bundles and elastic fibers in the dermis are neatly arranged to resist the production of granulation tissue and scar tissue, and retain the human skin application elasticity and touch. 3.After transplantation of ADM bio-complement, it will be gradually converted into a tissue similar to autologous tissue by the body. 2 weeks after the implantation of ADM bio-complement under the skin, there will be mild lymphatic-histiocytic infiltration and neovascularization, and very mild inflammatory reaction; in about 4 weeks, the inflammatory reaction will subside; in the 5th~8th week, the new fibroblasts can synthesize autologous collagen, and when the deposition and absorption of collagen reach a dynamic balance, the The implant will acquire a stable volume and become a part of the body permanently. In addition, in addition to penile enlargement and lengthening, ADM biological patch surgery also has a better treatment effect on some premature ejaculation, which can be considered as an unexpected pleasure. Third, is there any side effect of decellularized allograft dermis surgery? Any surgery has its side effects, after the operation of decellularized allogeneic dermis, the initial erection will feel some pulling sensation, which requires gradual adaptation, and there are a few cases of poor wound healing, infection and patch removal risk, therefore, for those who cannot accept the risk of surgery, they can also choose the relatively minimally invasive hyaluronic acid injection for penile enlargement and lengthening treatment.