[Clinical significance and intervention strategy of gastrointestinal psychiatry]

With the development of global economy and society,the number of patients who suffer from functional gastrointestinal disorders (FGID) and mental illness is growing. In recent years, a substantial amount of high-quality research evidence shows that these two kinds of diseases often coexist, and they are mutually causal, and their common pathophysiology is the abnormal interaction of "bacteria-gut-brain axis". In clinical practice, there are some problems, such as insufficient recognition and attention of both doctors and patients to its clinical manifestations, lack of understanding of pathophysiological mechanism, and lack of overall and integrated views of intervention methods, which may be the main factors of poor curative effect at present. Therefore, according to the global research progress and the author's clinical experience, we put forward a new viewpoint of "gastrointestinal psychiatry", it concluded that clinical intervention strategies needed to include dietary and lifestyle changes as well as multidisciplinary interventions such as probiotics, prebiotic, fecal microbiota transplantation and cognitive psychology. On the basis of gastrointestinal psychiatry, this paper systematically elaborated the diagnosis and treatment of this kind of diseases.