I was extremely bloated after my surgery. I thought it was because I couldn't burp but after 2 days it got a bit better. Not trying to be gross but I couldn't pass gas for over three three days. I guess it depends on how well your body handles the anesthesia. It gets better and soon it will just be a memory. Stay focused and good luck, because it works.I'm down 38lbs since Nov 3rd and just had my first fill yesterday.