Umbilical hernia refers to the protrusion formed by the contents of the abdominal cavity through the umbilical ring, commonly seen in infants and young children. When the affected child cries, coughs, or struggles, the increase in abdominal pressure can easily lead to an umbilical hernia. The purpose of an umbilical hernia belt is to apply a certain amount of pressure around the navel area to prevent the occurrence of an umbilical hernia. In principle, the umbilical hernia belt should be worn 24 hours a day, except during special times such as bathing. When using the umbilical hernia belt, it is also important to adjust the appropriate tightness to avoid being too tight, which affects the child's comfort, or too loose, which fails to compress the hernial ring effectively. Additionally, attention must be paid to avoiding the incarceration of the hernia contents.