What is the typical natural history of an umbilical hernia in an infant?

• A. Usually resolves by itself
• B. Requires surgical repair within 6 weeks
• C. Associated with Down syndrome
• D. Always presents with vomiting

Answer: (A)

Umbilical hernias in infants commonly close on their own as the abdominal wall strengthens. The defect at the umbilicus is usually small, and with time, growth and normal development of the fascial tissues permit the herniated contents to recede back into the abdomen and the opening to seal. Because of this, most infant umbilical hernias disappear by early childhood, often by age 2 to 3 years, and many even sooner. This is why the typical approach is to watch rather than rush to surgery.

Surgical repair is usually reserved for situations where the hernia persists beyond early childhood (often after age 4–5 years) or if there are complications such as incarceration or strangulation, or if the defect is unusually large. Umbilical hernias are not specifically linked to Down syndrome, and vomiting is not a defining feature of this condition; many babies with an umbilical hernia are otherwise asymptomatic.