Colonoscopy has many benefits The current health checkup packages focus on screening for cardiovascular diseases and diabetes, and do not include colonoscopy. As a matter of fact, colorectal cancer is insidious in origin and there are no obvious symptoms in early stage, if blood in stool, intestinal obstruction and other symptoms are found, the disease will enter into middle and late stage. Colonoscopy is intuitive and clear, and biopsy can be performed on suspicious parts, and if necessary, immediate colonoscopic treatment can be performed, which has obvious superiority and cannot be replaced by other examination means. Through colonoscopy health examination, colorectal cancer in earlier stages without symptoms can be detected so as to get timely treatment. If early stage bowel cancer is detected, part of it can be removed by simple colonoscopy, eliminating the trauma of surgical treatment. If precancerous lesions, such as adenomatous polyps, are found, they can be removed under colonoscopy, thus interrupting their development to intestinal cancer and achieving the purpose of cancer prevention. In general, anyone who suspects a colon lesion but cannot be clearly diagnosed should have a colonoscopy. With the continuous improvement of colonoscopy performance and the improvement of colonoscopy operation technology, people are not as nervous and afraid of colonoscopy as in the past, and colonoscopy is accepted by most of the symptomatic people and health checkups. Once blood in the stool is detected, if it is not sure that it is bleeding from hemorrhoids or anal fissure, colonoscopy should be done as soon as possible. If colorectal cancer can be detected early, the 5-year survival rate can be over 90%. What is a painless colonoscopy? Painless colonoscopy is the appropriate application of sedative anesthetics during colonoscopy, so that the patient can complete the examination under wakeful sedation or light sleep, and the whole process is comfortable, painless and memoryless for the patient. This technology can effectively improve the pain tolerance and physical and mental relaxation of the subject, and the process of examination is exactly the same as that of ordinary colonoscopy. People who need colonoscopy but are nervous and fearful, or those who have had colonoscopy before and were unsuccessful due to pain, are well suited to choose this test. However, after the painless colonoscopy, you usually have to stay in the hospital for 2-3 hours for observation, and leave the hospital with your family or colleagues only when you are awake and can talk normally, walk steadily, and have your blood pressure back to the level before the examination or close to it. The day before the colonoscopy, eat food without color, less residue or liquid, such as fish, eggs, milk, soy products, porridge, noodles, bread, bananas, winter melon, potatoes, etc. Take bowel cleanser according to the doctor’s requirement. Adequate bowel cleansing is needed before colonoscopy to reduce the difficulty of the examination and ensure the accuracy of the examination. The commonly used method of bowel cleansing with good safety is to take oral polyethylene glycol electrolyte solution and drink enough water to cleanse the intestine, and the bowel cleansing is measured by watery stools. For those who are not satisfied with bowel cleansing, it can also be combined with colon hydrotherapy to achieve better bowel cleansing and meet the needs of colonoscopy. Doing colonoscopy is not as scary as you think, no need to be overly nervous and anxious, must be relaxed. During the examination, the abdomen may feel distended and painful, because the colon is usually closed and has several curved parts, the doctor will properly inject some air into the mirror to facilitate the entry and observation, and after the observation is completed, the air will be removed, and the position may have to be changed during the examination to facilitate the examination, but as long as you cooperate well with the doctor and maintain a relaxed state of mind, this may also be a pleasant examination.