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    Cystic Fibrosis in Children

    What is Cystic Fibrosis?

    Cystic fibrosis is a lifelong disease that affects the respiratory, endocrine, reproductive and digestive systems.

    About 35,000 children and adults in the United States have CF. This disease is caused by a defective gene that makes the body produce very thick, sticky mucus. This mucus:

    • Clogs the lungs and leads to lung infections
    • Blocks the pancreas and prevents normal breakdown and use of food by the body, as well as inhibits the body’s ability to produce insulin
    • Affects bowel function, leading to constipation or loose stools, due to the increased mucus in the intestines
    • Clogs a part of the male reproductive system (vas deferens), or the vas deferens is absent altogether, making most males with CF sterile

    Cystic Fibrosis Symptoms

    People with CF can have a variety of symptoms, including:

    • Salty-tasting skin
    • Daily cough, at times with mucus
    • Lung infections
    • Shortness of breath
    • Poor growth or slow weight gain even with a good appetite
    • Frequent greasy, bulky, foul-smelling stools or troubl

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