Obesity is a significant public health problem. The only long-term effective treatment method is surgery. The most common surgical procedure is laparoscopic sleeve gastrectomy (LSG). However, after LSG, complications such as gastroesophageal reflux disease (GERD), insufficient weight loss, stenosis in the remnant stomach, and bleeding or leakage in the staple line (SL) may be encountered. The most severe complications are leakage and bleeding in sleeve gastrectomy, which can lead to many morbidities and mortality. Strengthening the staple line is an important option to prevent these complications. Methods such as fibrin adhesives, bioabsorbable patches and stitching of the stapler line are used to strengthen the stapler line. Nausea and vomiting, which occur in the postoperative period in 40% of patients who have undergone abdominal surgery and constitute a serious problem, are detected at an even higher rate in patients who have undergone bariatric surgery. Additionally, strengthening the staple line with various methods may increase the incidence of nausea and vomiting after LSG. Although there are studies in the literature investigating whether strengthening the staple line with buttress material or suture in laparoscopic sleeve gastrectomy affects the incidence of postoperative nausea and vomiting, there is no study investigating the effect of strengthening the staple line with fibrin glue on the incidence of postoperative nausea and vomiting. This prospective study aims to reveal whether there is a difference between strengthening the staple line with fibrin glue or suture in LSG regarding the incidence of postoperative nausea and vomiting and its effects on quality of life.