A hernia in children is commonly known as a small intestine strand. The reason why children get a hernia is a congenital developmental problem. Childhood hernia is mostly seen in premature babies and boys, but also in girls, but relatively rarely. The reason for this is that in the first month of life, the testicles descend from the abdominal cavity along the inguinal region to the scrotum, and then the peritoneal hole called the sphincter is formed and will close on its own, but if the sphincter does not close properly or does not close at all, a congenital hole will be formed in the inguinal region, and then after the child is born, along with the development of the body, the intestines or omentum in the abdominal cavity will come out of this hole and show up under the little tummy. This is a child hernia, and the bulge will be more obvious when the abdominal pressure increases when the child cries, stands or squats. In girls, a hernia can also occur in individual cases where the round ligament of the uterus is present. The age of onset of hernia in children is variable, accompanying the growth and development of the child, it is possible at several years of age, and some of them can develop in adulthood. The current treatment principle for hernia in children is that if the condition is not serious within one year of age, it can be treated conservatively by making a hernia belt similar to tight-fitting shorts and protecting the child by consciously pressing the bulge with the parent’s hand when the child is crying. If the hernia does not heal on its own or if the bulge worsens beyond 1.5 years of age, surgery is required. The reason for surgical treatment is very simple: find the hole and ligate it with a silk thread. There are two ways to do this: one is to open the surgery and separate the hole from the outside to the inside and ligate it, and the other is laparoscopic surgery, where a small hole is made in the abdominal wall and the hole is ligated from inside the abdomen at an absolute high level under the direct view of the laparoscope. We now use laparoscopic surgery for hernia in children. Although this procedure is demanding for the surgeon, the child has a fast recovery, low recurrence, and little side effects. The cost is about 3,000 RMB and the child can go home after one day of hospitalization without stitching or medication changes. Children with hernia cannot be repaired with a normal polypropylene patch, which is often referred to as a tension-free hernia repair, because the polypropylene patch has a certain rate of contracture and the change in height as the child’s body develops and grows can cause pain. For children between the ages of 6 and 14, the latest biologic patches are now available, as they can degrade and be absorbed. One condition that needs a lot of attention is when this bulge suddenly increases in size when the child suddenly strains or cries loudly and cannot be pushed back! This is called an incarcerated hernia! This is a dangerous situation that can cause life-threatening intestinal necrosis and requires immediate medical attention.