Introduction: Obesity is a metabolic illness that shows itself as an extra of unexpended energy stowed as fat. The causal factors include genetic predilection, consumption illnesses, psychological illness, increased food, absence of workout, and comorbid circumstances prompting obesity. The study aims to evaluate some aspects of laparoscopic sleeve gastrectomy, its benefits, and complications for patients with morbid obesity, operated in AL-HILLA city hospitals. Method: Data collected in a prospective Cohort study. LSG was performed for 20 patients for treatment of obesity and included the following demographics: body mass index (BMI, weight in kilograms divided by height in meter square (kg/m2), hip circumference, waist circumference, serum cholesterol, serum triglyceride, serum low-density lipoprotein, serum high-density lipoprotein, % HbA1c and fasting blood sugar, presence of co-morbidity (e.g. diabetes and hypertension), and complications following surgery. All patients were followed 3 months and 9 months postoperatively. Results: The mean age of patients included in the study was 34.30 +/- 5.31 years (23-45 years). The mean weight of patients was 146.70 +/- 21.92 kg (115-200 kg). The mean BMI was 51.45 +/- 5.65 kg/m(2) (37.5-63.8 kg/m(2)). The estimated weight loss % EWS was 69% after 9 months. Improvement of co- morbid diseases was significant. Conclusion: LSG is a reasonable procedure for the surgical management of morbid obesity. Hypertension and diabetes mellitus have commonly been reported to occur in the bulk of patients as complications of obesity.