Symptoms of Cystic Fibrosis


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

 very salty-tasting skin

persistent coughing, at times with phlegm

frequent lung infections

wheezing or shortness of breath

poor growth/weight gain in spite of a good appetite

frequent greasy, bulky stools or difficulty in bowel movement


Symptoms vary significantly in severity from patient to patient. New research suggests that the varying severity of CF symptoms is partly based on the types of CF gene mutations (defects) a person with the disease has. There are more than 1,000 different mutations of the CF gene.

Frequencies of the most common CF mutations in Ireland in 2010 

Figures taken from the CFRI (Cystic Fibrosis Registry Ireland) Annual Report 2010