The local anesthesia we adopt is local nerve block anesthesia, i.e., injecting anesthetic into the local nerves, the amount of anesthetic is small, the anesthesia effect is good, the postoperative pain is much lighter compared with other surgeries under anesthesia, and no longer need painkillers, you can have a normal diet before and after the surgery, and you don’t need to go down the urinary catheter, which is especially suitable for the elderly patients suffering from all kinds of chronic illnesses. “Tension-free inguinal hernia repair under local anesthesia in the preperitoneal space is an innovative procedure, which has the advantages of simple anesthesia, wide range of surgical indications, short hospital stay, low cost of surgery, and simultaneous treatment of inguinal hernia, straight hernia and femoral hernia (with full coverage of pubic foramen), etc. Compared with other procedures, it has become a gold standard procedure.