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Chronic functional abdominal pain (CFAP) is also known as functional abdominal pain syndrome. It is defined as the ongoing experience of abdominal pain without any clear physical explanation. It resembles irritable bowel syndrome and a variety of the treatments that work for IBS can also be used for chronic functional abdominal pain.
The difference between IBS and CFAP is that with CFIT there is no modification of bowel habits like diarrhea or constipation. Those sorts of bowel dysfunctions are required characteristics for diagnosis of IBS.
Chronic functional abdominal pain is diagnosed once other disorders like Crohn’s disease, colon cancer, irritable bowel syndrome, diverticulitis and appendicitis are eliminated. The International Foundation for Functional Gastrointestinal Disorders has some great information for CFAP treatment.