Many patients who go to the doctor with subintestinal discomfort or blood in the stool are advised to have a fiberoptic colonoscopy, and often the doctor will say, “Do you want to do a normal or painless one?” Most patients take the term “painless” literally to mean painless, and “normal” to mean painful. There is nothing wrong with the general meaning, but the word “pain” has led us into a misunderstanding, especially when the TV screens and advertisements on the streets are full of “Painless in your dreams for a few minutes, easy to get rid of the accident! I think this is the initial impression of painless, so how to choose between the two types of colonoscopy, and what is the difference between these two tests? First of all, we still analyze the word “pain”, so the textual meaning of “painless” must correspond to “painful”. Let’s see if it hurts to have a general colonoscopy. First look at the advantages: 1, low cost. 2, no need to cooperate with anesthesiologists, convenient and fast. 3, convenient to visit, in the primary hospital can be carried out. 4, if there is discomfort during the operation can be timely communication with the endoscopist to reduce the risk of intestinal perforation. Painless colonoscopy First of all, we still analyze from the word “pain”, so the literal meaning of “painless” must correspond to “painful”. Let’s see if a normal colonoscopy hurts or not. First look at the advantages: less pain during the examination, high degree of completion of the examination. Then look at the disadvantages: 1, the cost is relatively high, the appointment time is long; 2, there is anesthesia risk, such as patients with cardiovascular disease or other underlying diseases may have a certain risk of anesthesia, such as drug allergy, respiratory depression, cardiac arrhythmia, etc.; 3, the risk of perforation increases, although the incidence of intestinal perforation in colonoscopy is very low, but painless colonoscopy process due to the patient’s abdominal pain unconscious, the endoscopist requirements are relatively The risk of intestinal perforation is relatively higher due to the unconsciousness of the patient during painless colonoscopy; 4. How to take polyethylene glycol (PEG) at one time: and cool: dissolve 1 bag (137.15 g/bag) and cool all in 2000 ml of warm water (equivalent to 4 bottles of mineral water), stir well and drink it within 2 hours (take 250 ml every 15 minutes, equivalent to half a bottle of mineral water). Hengkang Zhengqing: Take two boxes of this product (containing A, B and C sachets), pour each packet of powder in the box into a cup (bottle) with a scale, add warm boiled water to 1500ml, stir to dissolve completely, and take. Drink for the first time until you feel full, then drink the rest of the liquid as much as you can stand, and finish it within 2 hours. Drink another 1500ml of warm water.