Intragastric balloon (BIB) is a mechanical restrictive device formed by a silicone wrapper inserted endoscopically in the stomach, filled with 500 cc of physiological blue methyl solution and kept in situ for 6 months. In two years 98 intragastric balloon have been set in 88 patients at the average age of 37.1 years, of 41.9 of BMI and 47.6 kg of weight. Complications were intolerance, gastro-oesophageal reflux, break and/or deflation and meteorism. BIB is an effective procedure in the temporary treatment of obesity leading to satisfactory weight loss and to short-term improvement of comorbidities.