A bowel preparation bbps score of 5 is not enough to meet the criteria for colonoscopy. The Boston Bowel Preparation Quality Assessment Scale (BBPS) is a commonly used method of assessing the quality of bowel preparation. The colon is divided into three segments: left hemicolon, transverse colon, and right hemicolon, and intestinal fluids are attracted and the bowel is irrigated, and then a score is assigned to each segment. It was categorized into 4 levels (0-3 points) according to the worst ~clean, with a total score of 0-9 points. Usually, a BBPS score of ≥6 is considered successful bowel preparation, and a score of 5 is considered satisfactory preparation. The higher the score, the better the bowel preparation, i.e., the less fecal matter as well as other contents left in the bowel, and the clearer the bowel can be seen during colonoscopy, which is conducive to the improvement of the lesion detection rate. Although a 5-point preparation is satisfactory, it does not fulfill the examination requirements and a colonoscopy cannot be performed. High-quality bowel preparation facilitates colonoscopy, and if the colonoscopy is not adequately prepared, it may affect the results and require a second examination or a CT scan, etc., so it is important to perform adequate bowel preparation. Factors such as constipation, diabetes mellitus, high age, and the use of anesthetics should also be looked at prior to preparation so as not to affect the outcome of the preparation.