ObjectiveFor treatment of obesity, which is one of the important health problems of the present time, lifestyle modification, pharmacotherapy, behavioral treatment methods, and surgical procedures are commonly used. Sleeve gastrectomy is widely used among surgical procedures. We aimed to investigate the relationship between histopathologic findings and body mass indices (BMIs) of cases with sleeve gastrectomy in our study.MethodsThirty-seven patients were included in our study who underwent sleeve gastrectomy and whose operation materials were examined histopathologically in our hospital. Two pathologists re-evaluated all gastrectomy materials. The relationship between BMI and the presence of gastritis, atrophy, intestinal metaplasia (IM), Helicobacter pylori (HPL), and other histopathological findings was investigated.ResultsThe mean age of patients included in the study was 34.7+9.3years. Of patients, 70.3% were female and 29.7% were male. There was a statistically significant difference between BMI and IM among the evaluated histopathologic parameters. Moreover, IM was significantly more present in patients with type 2 diabetes.ConclusionsThere is no previous study investigating the relationship between gastric histopathological findings and BMI in sleeve gastrectomy patients. We think that the statistically significant difference between BMI and IM that we found in our study may shed light on studies to be performed in the future.