Colonoscopy does not require anesthesia, and although there may be abdominal pain associated with e-colonoscopy, it can be tolerated and varies from person to person. The doctor who performs the colonoscopy will decide whether or not to continue with the test depending on the patient’s tolerance. If the patient cannot tolerate it, the procedure can be stopped, so you can rest assured. Of course, the examinee can also choose whether to have a general colonoscopy or a painless colonoscopy according to the hospital, but a painless colonoscopy requires anesthesia after all, and there will definitely be certain risks of anesthesia and side effects of anesthesia, so the examinee needs to consider carefully. It is not necessary to have anesthesia for colonoscopy, and it is not recommended to do so.