A Member of the University of Maryland Medical System | In Partnership with the University of Maryland School of Medicine
Umbilical hernias are fairly common. They are obvious at birth and are caused by a small defect in the abdominal muscles which allows a portion of the peritoneum (lining of the abdominal cavity) to protrude, and push the umbilicus outward. This is more obvious when the infant cries and the increased pressure results in more visible bulging. The defect is not usually treated surgically. In most cases, by age 3 the umbilical hernia shrinks and closes without treatment.
The indications for umbilical hernia repair include:

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).
© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885