An umbilical hernia is most common in premature infants and children between the ages of 2 and 4.
The protruding tissue may include a loop of the intestine or omentum, fatty tissue covering the intestines. If left untreated, an umbilical hernia can become strangulated, meaning the blood supply to the tissue is cut off. When this happens, surgery is
usually required.
Many cases of umbilical hernias resolve on their own by age 5 without any treatment at all. However, if the herniated tissue becomes trapped or strangulated and needs to be removed, your child's doctor may recommend surgery. Umbilical hernias that do
not close or that become strangulated most commonly require surgical repair.