Background: Laparoscopic sleeve gastrectomy (LSG) is the most frequently performed procedure in the world and has overtaken the “gold standard" Roux-en-Y gastric bypass (RYGB) Obesity. The abstraction of the fundus is linked to physiological changes in gastric motility, as the gastric pacemaker is removed. Variable distance of antral resection from the pylorus is present in most cases. This is expected to provoke alterations in gastric emptying.   Aim of the Work: to assess the changes in gastric emptying after sleeve gastrectomy and determine the time needed for accommodation. Recommendation of prokinetic therapy was or not reached after this study.   Patients and methods: 30 morbidly obese patients who underwent LSG. 99mTc–sulfur colloid GE scintigraphy was performed on all patients pre and post-surgery. All operations were standardized regarding bougie size and distance of antral resection.   Results: The mean preoperative body mass index BMI is 44.65±4.26 kg/m2 (range, 40 - 53) and the mean preoperative body weight is 123.90±14.79 kg (range, 105 - 155). accelerated gastric emptying presented in 24 cases, delayed emptying in 3 cases and normal emptying in 3 cases. The mean preoperative percent of retention at 30 min was 71.83±14.83 (range, 41.6 – 92) decreased to 57.88±12.66 (range, 38.1 – 80.1) after 3 months, and a mean percent of retention at 30 min was 57.45±21.41 (range, 18.7 - 85.2) after 6 months.   Conclusion: Gastric emptying was significantly accelerated after sleeve gastrectomy with application of tight bougie (36 French size) and preservation of the antrum. There was strong correlation between delayed gastric emptying and appearance of postprandial symptoms which subsided after prokinetic therapy. However, further studies are required for comparison between tight and wide bougie as regards their effect on gastric emptying and weight regain.