Treatment Choice - Treatment Choice | Compare Prices | Find Hospital | A gastric balloon aims to reduce feelings of hunger and help you feel fuller for longer after eating only small meals. Also known as an intragastric balloon, this type of weight loss treatment can help you lose weight without invasive surgery. During the procedure a soft balloon is inserted into your stomach through your mouth, using an endoscope (a thin, flexible telescope). The balloon is then filled with saline solution to partially fill your stomach, leaving less room for large amounts of food or drink. A gastric balloon is designed to be a temporary weight loss solution, and will usually be removed after six months. It is sometimes used to help you lose enough weight to undergo gastric banding or gastric bypass surgery.