How to tell if i have cystic fibrosis?

Sweat test: The gold standard to diagnose cystic fibrosis is the sweat test, which measures the amount of chloride in the sweat. The test takes a few minutes to an hour and is painless. It is done in specialized clinics and hospitals.

See a CF specialist: Sweat testing is the classical way to diagnose cystic fibrosis (cf). However, we no recognize that there are milder forms of CF that may have normal or borderline sweat chloride values. In males, azospermia or infertility can be a sign of cf. Genetic analysis of the CF gene is now often used to help establish the diagnosis of cf. Seeing a doctor who specializes in CF is a good idea.