Umbilical hernias can potentially cause abdominal distention because they may become incarcerated or even strangulated. The contents entering the umbilical hernia can include the omentum or intestines. If the small intestine or colon becomes incarcerated in the hernia, it can cause partial intestinal obstruction, with symptoms potentially including abdominal pain, distension, and nausea and vomiting. In cases where an umbilical hernia becomes incarcerated or ruptured, timely surgical treatment is necessary. Generally, umbilical hernias in children before the age of two do not require surgical intervention unless incarceration occurs. Most can be treated with adhesive strapping to allow for natural healing. If the umbilical ring still has a diameter greater than 1.5cm after the age of two, surgery should be considered promptly. For children over five with an umbilical hernia, surgery is recommended regardless of the specifics. Adults diagnosed with an umbilical hernia are also advised to undergo surgical treatment as soon as possible.