Diagnosis and prognosis of inflammatory bowel diseases: modern view

About 5% of the population suffer from chronic diarrhea. Intestinal infections are the most common cause of diarrheal syndrome. However, if they are excluded, it is necessary to check for other possible reasons: vascular, oncological, rheumatic, drug-induced, radiation diseases and other gastroenterological pathology except from inflammatory bowel diseases. When predicting and detrcting new predictors of unfavorable outcomes and progression of inflammatory bowel diseases, special attention has been recently paid to serological markers and genetic research, which have not yet entered clinical practice due to their high cost. Inflammatory bowel diseases is a diagnosis of exclusion, which is made after a comprehensive assessment of clinical, laboratory, endoscopic, and morphological data. In case of the development of complications, it needs to investigate new available prognostic markers of inflammatory bowel diseases course.