Symptoms suggestive of<unk>  are worked-up by obtaining the medical history, a physical examination and laboratory tests (CBC, electrolytes, stool culture and sensitivity, stool ova and parasites et cetera). Additional tests may include medical imaging (e.g. abdominal computed tomography, abdominal X-rays) and an examination with a camera inserted into the rectum (sigmoidoscopy, colonoscopy). An important investigation in the assessment of<unk>  is biopsy. A very small piece of tissue (usually about 2mm) is removed from the bowel mucosa during endoscopy and examined under the microscope by a histopathologist. It can provide important information regarding the cause of the disease and the extent of bowel damage.
Colitis
Microscopic colitis
Enteritis
Amoebiasis
Gastroenteritis
Segmental colitis associated with diverticulosis
Enterocolitis
Gastroenterocolitis