Pediatric navel protrusion, mostly seen in pediatric umbilical hernia, because the muscles around the umbilicus of the better belly button is not well developed, pediatric intestinal tubes through the weak abdominal wall, protruding into the subcutaneous formation of a spherical soft sac. Often the umbilicus is visible as a spherical or hemispherical reusable mass, when the pediatrician is lying quietly, the mass shrinks or disappears, and the umbilical skin is loose. When the baby cries, coughs, stands upright, or is constipated, the mass appears when the abdominal pressure increases. Newborns, small infants usually do not disappear, but if the hand gently pressure can cause the contents of the hernia into the abdominal cavity, and accompanied by water over the sound. It is also possible to palpate the umbilical ring with clear margins, hard tissue, and unclosed umbilical cord, which is mostly between 0.5 and 2 cm in diameter. It usually recovers around 1 year of age.