| Highlights Of Cystic Fibrosis Cystic fibrosis is a genetic condition that causes thick, sticky mucus buildup in organs like the lungs and digestive system. Cystic fibrosis occurs due to the mutation in the Cystic Fibrosis Transmembrane conductance Regulator(CFTR) gene inherited from both parents. Symptoms of cystic fibrosis vary and can include chronic cough, wheezing,…