2.+Symptoms

=**Symtoms**= People who have cystic fibrosis have unusually thick mucus and abnormally high levels of salt. The thick mucus both clogs the lungs and obstructs the pancreas. This causes the lungs to have infections often and heavy coughing. Also, the obstructed pancreas can cause serious digestive problems. Some babies with CF have a yellowish tone to their skin. As children get older they tend to have frequent and reoccuring respiratory infections, pneumonia, and chronic bronchitis.