The aim of the present research was to identify the characteristic personality traits of patients from the Central Army Hospital (Hospital Militar Central) in Bogota, who were candidates to bariatric surgery. To achieve this, 430 psychological histories of patients who attended psychological assessment as bariatric surgery candidates were reviewed, the Minnesota Multiphasic Personality Inventory 2 was applied and a semi-structured interview was carried out, the latter based on the assessment format for patients diagnosed with morbid obesity. The results showed a predominance of combinations 1-2 Hypochondriasis-Depression personality traits in patients who had obesity types I and II, and a predominance of 1-8 Hypochondriasis -Schizophrenia personality traits in patients who had superobesity. As a conclusion, there is a relationship between the profiles and the behaviors that characterize obese people, but no difficulties regarding social performance were found, just as the literature on the topic confirms.