Hello, and welcome! This is very very common after a colonoscopy. It is something called Clonic Bubbles but has some associations - Please read below and RELAX! Colonic bubbles associated with polyethylene glycol electrolyte solution are common and obscure mucosal visualization. The bubbles are only common if simethicone is added (this was a trial test) but is put into practice in some countries, and does not need authorization. They have done many tests with and without using simethicone together, while doing a Colonoscopy. Although presence and severity of bubbles are not typically talked about to the patient when preparing, there is a newer practice of adding simethicone to water - and flushes during the performance of colonoscopy suggests that impaired mucosal visibility from bubbles is commonplaced. over 30% of patients receiving polyethylene glycol electrolyte solution (PEG-ELS) have bubbles at the time of colonoscopy that may potentially interfere with polyp detection.Simethicone, which eliminates bubbles by decreasing surface tension, is a well-tolerated over-the-counter medication used for gas and bloating. You can try taking BEANO as odd as it sounds, or any OTC gas medication and see if it helps. It is normal, but if symptoms presist, of course, go back to your doctor. For now it is nothing to worry about, it is just a procedure used to help find extra problems in the rectum and intestines, (depending on the doctor) I hope I understood your question enought o answer it well! Please doctors, if you agree, leave an agree to keep this patient at ease! I have seen this many times, people coming back complaing and after simple meds (OTC) no problems after a few days.