Painless colonoscopy and general colonoscopy are not good or bad, and should be chosen on an individual basis. Painless colonoscopy has no pain, taking high, but there is a risk of anesthesia accident, ordinary colonoscopy has obvious pain. Painless colonoscopy and ordinary colonoscopy are operated in the same way, both are the colonoscope through the anus into the body for examination or treatment. However, painless colonoscopy uses anesthesia to make the patient fall asleep and complete the examination, which is more comfortable and less painful than normal colonoscopy. Intravenous anesthesia may occasionally result in anesthesia accidents, leading to respiratory depression. Due to the curvature of the intestinal tract, the colonoscope may scrape against the intestinal wall causing pain as it enters. Plain colonoscopy is significantly painful. If the patient has a high pain threshold, plain colonoscopy may be attempted. However, if the patient has a history of open surgery, the intestinal tract has adhesions, or the pain threshold is low and the pain level is high when entering the scope, it is recommended to choose painless colonoscopy in order to ensure that the examination or treatment is carried out smoothly. However, it should be noted that if there are extensive adhesions in the intestines, any colonoscopy is not recommended. The cost of painless colonoscopy is higher than that of general colonoscopy. Whether to choose painless colonoscopy or general colonoscopy varies from person to person, but all should cooperate with the doctor to complete the examination or treatment.