Colonoscopy is colonoscopy, the cost of which varies according to the level of the hospital, there are different rates. The general colonoscopy is about 350 yuan, and the painless anesthesia fee is about 1000 yuan for each hospital; the general colonoscopy is about 200 yuan, and the painless colonoscopy is about 1000 yuan for each hospital, and the specific cost should be consulted at each hospital. In addition, colonoscopy as an invasive test must be perfected preoperative examination, including infectious disease-related hepatitis B surface antigen, hepatitis C antibody, AIDS antibody, syphilis antibody, the cost of about 200 yuan, as well as liver and kidney function, routine blood tests. Older patients may also require an electrocardiogram, which costs approximately $30. If some patients also need to evaluate cardiopulmonary function, blood routine, coagulation function, etc., the overall cost will increase accordingly. The above prices are for reference only. It is recommended that patients who need to undergo colonoscopy should go to a local regular hospital for consultation. In addition to understanding the cost of colonoscopy, patients should also clarify the precautions to be taken before the examination. In order to better complete the colonoscopy and more clearly display the lesion, it is recommended that patients pay attention to the following aspects before the examination: 1, the day before the diet should be light, soft, less slag food, such as porridge, noodles, etc., avoid eating vegetables, fruits, eggs, meat, etc.; 2, according to the requirements of the endoscopy room of the hospital where the examination is performed take laxatives, generally the night before the examination take laxatives (commonly used for polyethylene glycol electrolyte dispersion), and then a lot of 3. Patients who are constipated should take laxative drugs such as laxative tablets and senna leaves a week in advance to ensure that the gastrointestinal tract is emptied during the examination; 4.