An organ or tissue in the abdominal cavity bulging from a weak area or defect in the abdominal wall is known medically as an abdominal wall hernia. They are inguinal hernia, umbilical hernia, femoral hernia, incisional hernia and parastomal hernia. Due to their high incidence, they have become an important social problem. Abdominal wall hernia often presents as a painless or distended localized swelling on the abdominal wall, which is obvious when standing and decreases or disappears when lying down, and becomes larger with increasing age. This not only causes difficulties in treatment, but also may result in the inability of the mass to return to the abdominal cavity, resulting in abdominal distention, abdominal pain, vomiting, and inability to ventilate and defecate, which can be life-threatening if not operated on in a timely manner. Except for a few hernia in young children, hernia generally requires surgical treatment to achieve healing. There are many methods of hernia repair. In recent years, laparoscopic hernia repair has evolved tremendously, as have other laparoscopic procedures. Usually we only need to make two 5 mm and one 10 mm holes in the abdominal wall, add a patch and a staple gun, and the whole procedure is done. This surgery has the advantages of less bleeding, less painful incision, shorter hospital stay, faster recovery of bowel function and earlier return to work. The main procedure is total extraperitoneal hernia repair (TEP for short), which has the following advantages: (1) the operation is not performed in the abdominal cavity, so there is less chance of damaging intra-abdominal organs and creating adhesions; (2) the patch does not require sutures, which eliminates chronic postoperative pain caused by sutures; (3) the patch can cover inguinal hernia, straight hernia and femoral hernia prone areas at the same time, so the recurrence rate is low; (4) it is the most effective treatment for hernia. ; (4) it is most suitable for bilateral inguinal hernias, recurrent hernias and compound hernias. Conventional open repair surgery involves another incision into the abdomen at the original surgical incision, causing the scar tissue, which is already less strong than normal tissue (usually 20% less), to be traumatized again, and in order to place a patch larger than 3-5 cm (clinically required) from the edge of the defect into the incision, the incision must be separated by level and the separated wound surface is larger. This results in an increased complication rate of the incision and a higher recurrence rate after surgery, in addition to a more pronounced postoperative wound pain. In contrast, repair using the laparoscopic technique, the surgical incision is small and far from the original surgical incision, preserving the strength of the original hernia ring, and intra-abdominal pressure is evenly distributed over the entire patch, resulting in a significant reduction in the complication rate of the incision and the postoperative recurrence rate. The advantages are obvious. Clinically, the treatment of a para-enterostomy hernia is quite a tricky and paradoxical matter. Direct suture repair has a postoperative recurrence rate of 46% to 100%, whereas repair with a patch is prone to intraoperative contamination and infection due to the exposure of the stoma, and once the infection is present, the repair may fail and the patch has to be removed by surgery again. The successful application of laparoscopic techniques in incisional hernia repair has given hope to this difficult treatment, which not only has the advantages of laparoscopic incisional hernia repair, but also allows repair with a patch away from the contaminated area, achieving a more desirable therapeutic effect. Finally, two issues need to be clarified: 1. Not all abdominal wall hernias can be done laparoscopically. In patients with extensive and dense intra-abdominal adhesions, only open repair surgery can be performed. 2. Not minimally invasive surgery is laparoscopic surgery. For incisional hernia and parastomal hernia, laparoscopic repair has much greater advantages than open repair in terms of its minimally invasive nature; in the treatment of inguinal hernia, the advantages are more obvious for bilateral inguinal hernia, recurrent inguinal hernia and compound hernia as well as hernia in young people, but for the elderly, frail and sickly and those who cannot tolerate general anesthesia, we give open patch repair under local anesthesia, which can also achieve the purpose of minimally invasive surgery. Therefore, the combination of individualized principles and minimally invasive means is the best mode of abdominal wall hernia treatment.