Background:morbid obesity is a growing health problem in the modern world and affects almost 20% of the population. Obesity associates with increased morbidity and mortality, one of which is dyslipidemia. Bariatric surgery is the only known method to induce significant weight loss and prevent its regain in morbidly obese patients. Aim of the work: the aim of this work was to evaluate the effect of laparoscopic sleeve gastrectomy on serum lipids (Cholesterol - TG - LDL - HDL) and analysis of these data and compare with other results from different centers, institutes all over the world. Methods: our study was a retrospective study on 20 patients hospitalized in General Surgery department of Al-zhraa University hospital who underwent laparoscopic sleeve gastrectomy in order to treat morbid obesity from August 2018 to February 2019. Results: In our study 3 month after LSG we observed significant changes in lipid profile parameters including significant decrease in total cholesterol, TG, LDL and significant increase in HDL. Conclusion: our retrospective study shows that LSG is very good bariatric procedure with excellent results on short term follow up regarding body weight reduction, BMI. Three months after operation improve metabolism and lipid profile was accompanied by decrease in Total Cholesterol, Triglyceride and LDL cholesterol and increase in HDL cholesterol change in significant way