Undiagnosed Diseases Network at CHOP

Every year, thousands of children and adults in the United States face uncertainty and repeated challenges when their healthcare providers cannot discover the cause of their symptoms or figure out how to make them feel better.

The Undiagnosed Diseases Network (UDN) is a collaborative research study backed by the U.S. National Institutes of Health that seeks to provide answers, hope and healing to patients and families affected by these mysterious and difficult to diagnose conditions. The Undiagnosed Diseases Network at Children's Hospital of Philadelphia (CHOP) is part of this collaboration.

Who’s Eligible and How to Apply

Our Programs and Services

All programs and specialties at CHOP collaboratively work to gain insights into the cause of disease in the UDN patients. This multidisciplinary model ensures that the best minds share insights on each patient. In addition, Network physicians around the country come together to determine the best approach for each patient in the Network.

Our Team

Experts across Children's Hospital of Philadelphia take a team approach to your child's diagnosis and care. This allows us to more quickly respond to your questions and concerns.

Next Steps