Inguinal hernia in children is a hernia in the inguinal region that occurs in children between 0 and 18 years of age. The best time for surgical treatment is from 1 to 6 years of age, when a simple high ligation can achieve satisfactory results, but after 6 years of age, children have different degrees of transverse abdominal fascia defects, so the effect of a simple high ligation of the hernia sac is relatively poor. However, the polypropylene patch cannot be used in children between 7 and 18 years of age because the polypropylene patch does not grow with the body during this period of development. Therefore, high ligation can still be used in children aged 7-18 years, and biological patches can also be used. Currently, high ligation of the hernia sac is still recognized as the basic treatment for inguinal hernia in children. There are two surgical approaches: 1. Open hernia bursa ligation: The traditional surgical approach involves incision of the external oblique tendon membrane and reconstruction of the external ring after high ligation of the hernia bursa, which is more invasive and results in significant postoperative swelling and pain, usually requiring the child to lie flat for 3-5 days. The improved method can be performed with a small transverse incision at the external ring and without incision of the tendon membrane of the external oblique muscle, which preserves the normal anatomical structure of the inguinal canal and reduces the occurrence of the above complications. 2.Laparoscopic high ligation of hernia sac: Laparoscopic technique has unique advantages due to its The higher the ligature is and the closer it is to the hernia ring, the better the result will be, so satisfactory results can be obtained. ②The anatomical structure of the inguinal region can be clearly observed under the microscope, which greatly reduces the side injuries of the operation. ③Laparoscopic surgery can explore both inguinal regions at the same time and facilitate the detection of contralateral occult hernia, avoiding the omission of occult hernia and not increasing the wound, which is especially suitable for children with bilateral inguinal hernia. ④The trauma is small, only 2 small 0.5cm incisions on the abdominal wall are needed, and the postoperative scars are very small, which is a real minimally invasive surgery. There is basically no obvious pain after surgery, and the child recovers quickly, and can resume eating and drinking 4 hours after surgery. ⑤ Postoperative complications are few. The chance of complications such as wound infection and scrotal swelling after laparoscopy is significantly lower than that of hair knife surgery.