Chronic abdominal pain in childhood: diagnosis and management.

More than one third of children complain of abdominal pain lasting two weeks or longer. The diagnostic approach to abdominal pain in children relies heavily on the history provided by the parent and child to direct a step-wise approach to investigation. If the history and physical examination suggest functional abdominal pain, constipation or peptic disease, the response to an empiric course of medical management is of greater value than multiple "exclusionary" investigations. A symptom diary allows the child to play an active role in the diagnostic process. The medical management of constipation, peptic disease and inflammatory bowel disease involves nutritional strategies, pharmacologic intervention and behavior and psychologic support.