An umbilical hernia is a condition in which the “protruding” belly button becomes larger when the baby cries or exerts himself. The word “hernia” means “protrusion of the intestines through a defect”. A pediatric umbilical hernia is related to the characteristics of the umbilical cord, which passes through the wall of the abdominal cavity and enters the body of the fetus while the baby is in the womb, supplying the fetus with blood. When the umbilical cord falls off after the baby is born, the muscles of the abdominal wall around the belly button begin to squeeze shut and the baby develops an umbilical hernia. Sometimes the gaps between the muscles of the baby’s abdominal wall are large and the intestines underneath the muscle layer can squeeze through the thin abdominal wall and out through the gaps, especially when the baby cries and exerts himself resulting in increased pressure in the abdominal cavity. By the age of two, the gap in the muscles of the baby’s abdominal wall usually closes and this painless, harmless hernia heals, so umbilical hernias usually do not require treatment. In rarer cases, there is a gap in the muscle above the belly button that causes a hernia. This hernia is less likely to heal on its own and may require surgery. Non-surgical treatment: Some people use wide adhesive tape to compress the umbilical hole and return the hernia contents before sticking the tape, padded with gauze to prevent the hernia contents from coming out. Most people advocate not to need any treatment, wait for its self-healing, do not advocate localized coins, buttons or pieces of wood and other hard objects to pressure, in order to prevent localized rupture and infection. Surgery: Only a few cases require surgery. Generally after the age of 2 years, if there is hernia content and hernia sac adhesion or have a history of incarceration should be timely surgery. Surgical treatment is more effective and rarely recurs. Non-surgical treatment should strengthen the umbilical care to prevent pressure damage to the umbilical thin tissue and lead to serious consequences.