to detect diseases of the intestine plays an important role attentive conversation with the patient's physician.During the conversation, the patient can talk about their complaints, limitation of their occurrence and the development of symptoms, their order of appearance.
are important information about the features of the digestive system of the patient - the presence of flatulence, the propensity to diarrhea or constipation, frequent changes of these states.
In some diseases, small and large intestine may cause signs of inflammation of the joints (arthritis), eye disease (uveitis - an inflammation of the choroid).
A detailed laboratory study of the patient - performed clinical blood and urine, fecal digestibility of dietary fiber.In some cases, appointed by duodenal intubation with subsequent laboratory investigation obtained duodenal contents (including research on the carriage of parasitic microorganisms - Giardia, fluke and other parasites).
great importance for accurate diagnosis are biochemical research - a common blood protein and its fractions, blood lipid profile with a detailed study of all the factions, the study of carbohydrate metabolism.
In some cases, conducted immunological blood tests that detect the presence of antibodies to the cells of different parts of the intestine, as well as parasites and microorganisms - pathogens of the most common diseases of the intestine.
From the instrumental methods of investigation appointed by esophagogastroduodenoscopy, allows examine the esophagus, stomach and upper small intestine - the duodenum.To study the colon prescribe sigmoidoscopy and colonoscopy.In some cases, detect disease site allows the X-ray - X-rays and X-rays after the suspension of barium sulfate contrast: when administered orally or through an enema.
To assess the state of adjacent organs - the liver, the spleen - an ultrasound of the abdominal cavity.