Human lungs affected by cystic fibrosis

Cystic Fibrosis Symptoms and Diagnosis

The earlier cystic fibrosis is diagnosed, the better. Learn about symptoms, which may affect many parts of the body besides the lungs, and diagnostic tests.

Girl being annoyed by father smoking a cigarette

Cystic Fibrosis: Causes and Risk Factors

Medically reviewed by Sanja Jelic, MD

Lung function test

How Cystic Fibrosis Is Diagnosed

Medically reviewed by Sanja Jelic, MD

Mother holding baby with cystic fibrosis during pediatric appointment

Cystic Fibrosis: Signs, Symptoms, and Complications

Medically reviewed by Sanja Jelic, MD