Objective: to study the psychological characteristics of patients with irritable bowel syndrome (IBS), ulcerative colitis (UC), Crohn's disease (CD). Material and methods. The study group included 98 patients with IBD (inflammatory bowel disease) and IBS, the control group included 30 healthy individuals. Set of psychological tests included questionnaire (multifactorial systemic examination of the person), the Luscher color test, Beck Depression Inventory, a test on health, activity, mood. Results. Premorbid personality traits, communication disorders with stress have been revieled. According to the nosology different types of emotional response to the disease, changes in health and activity have been marked. There is a high level of frustration needs, increased frequency of anxiety and depression in all patients. Conclusion. Psychological mechanisms of pathology are similar in functional and organic bowel diseases with the greatest influence on the course of functional disorders.
Kozlova I.V., Myalina Yu.N., Lekareva L.I., Badieva O.E., Tikhonova Т.А. Psychological characteristics of patients with functional and inflammatory bowel disorders // Saratov Journal of Medical Scientific Research, Vol. 10, Issue 1, 2014, pp. 80-85

The research work is devoted to irritable bowel syndrome (IBS) as an independent nosological unity of modern gas-troenterology. Risk factors, clinical manifestations and diagnostic methods of IBS have been analyzed. Psychological and social characteristics in the development of IBS have been examined
Burulova О.Е., Kozlova I.V., Myalina Yu.N. Irritable bowel syndrome as a biopsychosocial disease (review) // Saratov Journal of Medical Scientific Research, Vol. 8, Issue 2, 2012, pp. 232-237