Many people have intestinal disorders and their doctor will recommend a colonoscopy. In most cases, colonoscopies are not too uncomfortable and can be tolerated. However, many people, for psychological and physical reasons, will have a more uncomfortable problem. The colonoscope used for colonoscopy is a tube-shaped instrument with a certain diameter. The colonoscope needs to enter from the anal opening all the way to the ileocecal region, and during the entry process, a sensation similar to defecation is produced and is continuous. This sensation can make a person become uncomfortable. In addition, during the colonoscopy, the doctor needs to constantly inflate, inject water, and inject antifoam and other medications in order to clearly see the appearance of the inside of the intestine, so there will be localized dilatation of the intestine, and these operations may result in a feeling of bloating. Some people, for whom these discomforts are uncomfortable, may find them more unpleasant. Discomfort is certainly present during the examination, but there is not no way to alleviate the patient’s discomfort. Currently, colonoscopy is more often performed under anesthesia, mostly using intravenous anesthesia, where drugs are injected intravenously and the examination is performed under the close monitoring of an anesthesiologist, which is not only safe but also eliminates the maximum amount of discomfort during the examination. Although there is discomfort during colonoscopy, it is possible to make this discomfort mild with the current medical conditions. For those who need to be examined, it is still recommended to do so in a timely manner.