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Cystic Fibrosis - Cause

Cystic fibrosis occurs when a child inherits a changed (mutated) gene from both parents. The changed gene causes problems with the way salt and water move in and out of the cells that make mucus, causing the mucus to be thick and sticky. This kind of mucus makes it hard for the body to keep certain organs clean and healthy.

Many people don't know they have the changed gene. If you are the parent of a child who has cystic fibrosis, it is important to remember that nothing you did caused the disease.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: July 18, 2013
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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