The mucus becomes thick, sticky and permanent. The mucus in lungs usually catches and traps germs before disposing them. With CF, the mucus cannot dispose these germs because it adheres to the lungs. If germs stay in the lungs for too long, the lungs may become infected and diseases begin to form.
Children with CF have trouble gaining weight even with a normal diet because in the pancreas thick mucus may block the passages that usually carry essential enzymes to the intestines to digest food. The child’s body cannot process and absorb nutrients in the normal way.
- David Nathan