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Cystic Fibrosis

Cystic fibrosis (SIS-tik fi-BRO-sis), or CF, is an inherited disease of the secretory (see-KREH-tor-ee) glands. Secretory glands include glands that make mucus and sweat.

"Inherited" means the disease is passed from parents to children through genes. People who have CF inherit two faulty genes for the disease—one from each parent. The parents likely don't have the disease themselves.

CF mainly affects the lungs, pancreas, liver, intestines, sinuses (More)

Understanding Cystic Fibrosis

  • Newborn Screening for Cystic Fibrosis
  • Cystic Fibrosis (OSU Patient Education Materials)
  • Cystic Fibrosis - ADAM
  • Cystic Fibrosis: From the NIH (MedlinePlus)
  • Genetics Home Reference: Cystic Fibrosis (National Library of Medicine)
  • JAMA Patient Page - JAMA Patient Page (American Medical Association)
  • Late Diagnosis of Cystic Fibrosis
  • Learning about Cystic Fibrosis (National Human Genome Research Institute)
  • What Is Cystic Fibrosis? - Slideshow (Dolan DNA Learning Center)

  • Commonly Asked Questions


  • Can I Be Diagnosed With CF At 61?
  • Can You Get Cystic Fibrosis At 51?
  • Could a Sweat Test Be Wrong?
  • Do I Have Cystic Fibrosis or Emphysema?
  • Do You Treat Borderline CF the Same as Typical CF?
  • I'm 24, How Did I Test Positive for CF?
  • Is CF Always Inherited?
  • What Is the Life Expectancy of Adults with CF?
  • What's the Chance of a CF Child?
  • Why Can't People with CF Stay in the Same Room?

  • Additional Information

  • Symptoms and Tests
  • Treatment
  • Complications
  • The Body
  • Meet Our Experts

    NetWellness Expert Michael W Konstan

    Michael W Konstan, MD
    Case Western Reserve University

    Last Updated: Nov 12, 2015