**Abstract**

Obesity management requires a multidisciplinary, integrated treatment composed of medical, nutritional, physical, and psychological interventions. Currently, bariatric surgery is the most suitable treatment available in case of severe obesity, or obesity with comorbid medical conditions. Despite bariatric surgery results in a significant weight loss in most of the cases, a not-inconsiderable portion of patients does not achieve relevant outcomes, in terms of limited weight loss or weight regain due to psychological problems. The pre-operative evaluation of the psychological conditions of the candidates for bariatric interventions and pre/post-surgical psychological support is required in order to achieve the desired post-operative outcomes for a long time. In this chapter, we will elucidate the core components of the psychological assessment of bariatric candidates. Moreover, the main directions for the pre/post-surgery psychological support will be provided.

**Keywords:** obesity, obesity management, bariatric surgery, psychological assessment, psychological support
