A member asked:

Is cystic fibrosis because of mucus?

A doctor has provided 1 answer

Kind of...: Cystic fibrosis (CF) is a genetic disease. Patients with the disease are born with a defective gene that is part of the body's system for making mucus, sweat, and digestive fluids. Their mucus is therefore abnormally thick and causes blockages in the lungs, pancreas and other organs that damage them and make them prone to infections and other problems.

Answered 4/25/2016

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