If you are experiencing a medical emergency please dial 911 immediately
Cystic fibrosis causes mucus to become thick and sticky, which can block the normal function of the organs. Most often, the lungs and pancreas are affected.
Last Revised: July 18, 2013
Author: Healthwise Staff
Medical Review: John Pope, MD - Pediatrics & Susanna McColley, MD - Pediatric Pulmonology
To learn more visit Healthwise.org