Colonoscopy is currently one of the more commonly performed tests. The cost is usually around a few hundred dollars, but some special people, such as the existence of fear of examination, need to choose some special anesthesia, may also need to increase some costs, but it is not high. 1, colonoscopy, in many cases, can be operated in the state of no anesthesia. This examination without anesthesia, the cost mainly includes some routine checks before the examination, including electrocardiograms, infectious diseases and other tests, including colonoscopy, the cost is estimated at about a few hundred dollars. Most of the population can still receive it. 2, but special circumstances, some people because of some psychological reasons, as well as the fear of the existence of abdominal distension and discomfort during the examination, anal foreign body feeling. In addition, some patients are a little older, and during the examination, unpredictable situations may occur due to discomfort. In this case, colonoscopy can be performed under intravenous anesthesia, which will increase the cost of anesthesia, and some other physical examinations will be required due to the unexpected situation during anesthesia. So the cost will be greatly increased. 3, during the examination, some abnormalities may be found, and the doctor will remove these lesions that can be removed under colonoscopy in various ways under colonoscopy, and then carry out pathological examination, which may also be the reason for increasing the cost. The cost may increase anywhere from several hundred to several thousand dollars. Colonoscopy, not only has the function of examining the disease, but also has the function of treatment. In addition, the need for anesthesia during the examination is also the reason for the change in cost.