A medical history is an important part of diagnosing cystic fibrosis in a child. The doctor asks parents a variety of questions as well as discusses behaviors and other factors that could be contributing to the symptoms.
Cystic fibrosis usually is diagnosed in childhood. If cystic fibrosis is not diagnosed until adulthood, usually it is because the condition is very mild. Infertility and ongoing mild problems with the respiratory or digestive systems may be the only symptoms of the disease.
WebMD Medical Reference from Healthwise