Most people don’t experience any complications at all but you should be aware of the risks. Bleeding or perforation can occur as a result of injury during the balloon insertion or removal. Gastric discomfort, nausea and vomiting are common for the first few days following balloon placement but rarely continue in the longer term.
You may get a sense of heaviness in the abdomen, abdominal and/or back pain, gastro-oesophageal reflux (where stomach acid leaks out of the stomach) or indigestion. Although rare, leakage or deflation of the balloon could occur.
A full list of risks will be explained to you by your consultant who is undertaking the procedure.