What is a hernia? The contents of the abdominal cavity bulge through a weakness or defect in the abdominal wall, forming a sac into which a segment of intestine or other abdominal organ enters, forming a hernia. How are hernias classified? There are two main categories of hernias according to the area where they occur: abdominal wall hernias and inguinal hernias. Inguinal hernias: hiatal, ventral and femoral; wall hernias: incisional and umbilical. What are the dangers of hernias? If left untreated, a hernia can grow larger and larger, leading to chronic abdominal pain and bloating. Huge bulges affect daily life and are a serious aesthetic problem. If it becomes lodged, it can lead to intestinal obstruction and even life-threatening. Who is prone to hernia? It is common in men, with about 2% of men in the United States suffering from this condition. Anyone can develop a hernia. The main factors are: 1. advanced age: the elderly population in China exceeds 300 million, and the incidence of hernia is 1,18% over the age of 60; 2. obesity; 3. long-term increased intra-abdominal pressure: long-term coughing and shortness of breath, difficulty in defecation, weight bearing, etc.; 4. patients who have had surgery on the abdominal wall. Treatment of inguinal hernia: 1. Tension-free mesh repair: mature technique, short operation time, little trauma, operation can be performed with local anesthesia, fast recovery time, you can get out of bed and walk after the operation, resume daily life about 3 days after the operation, resume physical work about 14 days after the operation. 2.Pre-peritoneal gap repair: more comfortable after surgery, can repair huge hernia and recurrent hernia can cover the whole hernia-prone area. 3.Laparoscopic repair + 3D-MAX: less trauma, faster postoperative recovery, less postoperative pain, more suitable for repair of bilateral inguinal hernia and recurrent hernia. The 3D-MAX hernia repair mesh specifically used for laparoscopic repair of inguinal hernia is a three-dimensional mesh that conforms to the body structure, thus reducing sutures and better reducing the chance of bleeding and pain compared to using ordinary flat sheets. Three methods are most commonly used for the treatment of incisional hernia in the abdominal wall: anterior muscular mesh repair, posterior muscular mesh repair technique, and intra-abdominal mesh repair technique.