Respiratory system Gut Pancreas Liver and bile ducts Genitourinary system
Newborn   meconium ileus   obstructive jaundice  
The infant recurrent pneumonia   Steatorrhea
failure to thrive
   
Child recurrent pneumonia
bronchiectasis
nasal polyposis
sinusitis
pulmonary heart
Volvulus
Intussusceptions
rectal prolapse
failure to thrive Gallstones
Cirrhosis
 
Teenager/
young adult
decreased athletic performance       azoospermia/ infertility
Table 1: Clinical manifestations according to age.