It is easier to put on and take off loose clothing for a colonoscopy, avoiding excessive layers of clothing as well as one-piece suits. Colonoscopy involves inserting a colonoscope through the anus to the colon area while looking at the mucosal side of the bowel for organic lesions. During colonoscopy, it is necessary to remove clothing and underwear to expose the anus. Therefore, it is best to wear loose clothing during colonoscopy so that the examination can be performed quickly and easily, otherwise the examination time will be prolonged. When doing colonoscopy also avoid wearing too many layers of clothing, which is not conducive to the exposure of the examination site before the examination, while not recommended to wear a one-piece suit, which will also increase the difficulty of putting on and taking off, in addition to the process of the examination of clothing rubbing the colonoscopy of the situation and the impact of the examination. It is best to wear loose clothing for colonoscopy, and if discomfort occurs, the colonoscopy should be carried out under the guidance of the doctor in a timely manner.