Laparoscopic sleeve gastrectomy (LSG) has become an important tool in the bariatric surgery armamentarium. At the second international consensus summit for LSG, a representative group of bariatric surgeons reported its use as a primary procedure, with excellent results and safety. The advantages that have made it so popular are the absence of dumping syndrome, no intestine is bypassed, there is no malabsorption of fundamental nutrients, mortality, and complication rates are lower, and weight loss so far is satisfactory. LSG has been considered a technically easier procedure compared with gastric bypass or biliopancreatic diversion, leading to new groups to adopt it over the latter. However, as any other procedure, LSG has complications that range from 0.7 % to 4%, some of them potentially fatal. The knowledge of their existence and their mechanisms of production is fundamental to preventing them and preserving the excellent record of safety of this technique. One of the infrequent complications of LSG is the stricture of the remnant stomach, which is constructed purposely as a narrow tube and consequently, has a risk of stenosis and obstruction. Opposite to leaks, this complication has been barely mentioned in clinical series. In addition to strictures, there are other causes of obstruction and some will be addressed in this article, which will elaborate in causes, clinical presentation, and management. It even includes technical considerations paramount to avoid mechanical obstruction of the sleeve and guarantee an adequate food intake to the patient in the long term.