I agree with you that depending on your age, particularly over the age of 50 a colonoscopy
can be indicated for unexplained abdominal symptoms. If it is normal, other functional causes of colic abdominal pain
in the subcostal region, such as irritable bowel syndrome
, can be contemplated, but again, this is usually a diagnosis of exclusion where there is no structural organic disease of the gut.
Dr Brenes-Salazar MD
Mayo Clinic MN