Umbilical hernia refers to a protrusion formed by abdominal cavity contents through the umbilical ring, commonly seen in infants and young children. Most umbilical hernias can heal on their own within the first year as the umbilical fascial ring gradually contracts. Therefore, non-surgical treatment is mostly adopted to promote healing. However, if the child is over two years old and the diameter of the umbilical hernia exceeds 1.5 centimeters, surgical treatment is recommended. After umbilical hernia surgery, the belly button is still preserved. The surgery generally involves making a small incision at the lower edge of the navel, freeing the hernial sac, repositioning the hernial contents, and after partially excising the hernial sac at the umbilical ring, suturing is performed.