Umbilical hernia is caused by the immaturity of the muscles around the umbilicus and the protrusion of material in the abdominal cavity, including the intestinal canal, to the outside. Most umbilical hernias can heal on their own, and most of them generally grow back by the age of 1-2 years, and some children may have grown back by 7-8 months. A very small number of umbilical hernias with heavy protrusion and particularly large umbilical hernias that do not grow well by 4-5 years of age may require surgical treatment and umbilical hernia repair. If the umbilical hernia is only 1-2 cm or even smaller and the child is in good condition, most of them will grow back on their own without special treatment, but the child should be closely monitored. In some cases, if the child is crying or irritable, the abdominal pressure may increase and then the intestine may protrude from the umbilical ring causing an impaction and the protruding material may not be able to be retracted into the abdominal cavity. In this case, attention needs to be paid to the necrosis of the intestinal canal and promptly go to the hospital for treatment. Some patients are also advised to have an umbilical hernia belt, but the clinical results are not particularly good. The reason is that if the band is tied too tightly, the child’s abdominal pressure will be too great. If it is tied too loosely, it may move and the effect is not good, so in general, no special treatment is needed and observation is sufficient.