Zhang is a warm-hearted old man, strong body, often in the neighborhood to help people solve things big and small. But not long ago, he found himself sometimes constipated for days, squatting in the toilet for half a day can not come out, it is difficult to squeeze out a little, but also sticky with blood; sometimes a day to go to the toilet seven or eight times a day, pulling his feet soft, can not raise the spirit. Once, the community advanced evaluation will just start, Zhang old man has already run three times to the toilet, sitting next to Zhang old man community doctor Li asked about the situation and suggested that he do a colonoscopy. Zhang had heard that the colonoscopy is very painful, you have to use a large tube more than a meter long from the anus inserted, in the stomach of the seven turns, let a person strangled, and therefore hesitant, but the stomach so tossed down is not a solution. Finally, Mr. Zhang went to a big hospital for a colonoscopy, and the result was unexpected, the examination found that he suffered from colon cancer, but fortunately the condition is still in the early stage. Painless technology makes colonoscopy no longer painful Many people hear the doctor ask for colonoscopy, the first reaction is reluctant to do, because of the fear of pain, often resulting in delayed condition. In the past, the common colonoscopy is the use of a length of about 140 centimeters, diameter of about 15 millimeters can be bent, the end of the end with a light source with a miniature electronic camera fiber hose, from the anus into the large intestine, through the end of the colonoscope camera transmits signals to observe the internal intestinal tract. It takes an average of 10 minutes to perform a complete colonoscopy, during which the doctor will rotate the mirror, pump and fill it with water, which may cause the patient to suffer from abdominal pain and perspiration. Painless colonoscopy is a new technology of painless gastroenteroscopy, which injects a kind of drug (such as midazolam, propofol, etc.) with fast onset, short effective time and precise effect intravenously before the examination, causing central inhibition so that the patient will be quiet, forgetful and less anxious; it can improve the patient’s tolerance and reduce the stress response, thus eliminating the sense of fear and discomfort and enabling the endoscopic examination and treatment operation to be carried out smoothly. Is painless colonoscopy safe? This is also a concern for many patients. Painless colonoscopy has been applied in many big hospitals at home and abroad for a long time, which has proved its high safety, and has the advantages of fewer complications, faster recovery, etc. Most of the patients feel good about themselves during and after the operation. However, it should be reminded that although painless colonoscopy is a great improvement over the previous gastroenteroscopy, it also has certain contraindications. Since the drug used is a central inhibitor and is metabolized in the liver, it is contraindicated for those with severe respiratory disease, cardiovascular disease, liver failure, and those in poor general condition. Weighing before the examination, in order to accurately calculate the amount of drugs; after the examination, the patient is fully awake before leaving; the day of the examination is prohibited to drive a motor vehicle, ascent, etc., in order to avoid accidents, and it is recommended to have a family member to accompany the examination. Painless colonoscopy effect is good Now the high-definition colonoscopy through the installation of the front end of the colonoscope electronic camera probe will be installed in the image of the colon mucosa transmitted to the electronic computer processing center, displayed on the monitor screen, the doctor can observe the colon mucosa of the small changes, such as cancer, polyps, ulcers, etc., and can be photographed, printed, and preserved high-resolution photographs of the interior of the colon. In this way, the patient or other clinicians can visualize the condition, help choose a treatment plan to avoid delays, and provide a reliable basis for comparison before and after treatment. If necessary, biopsy forceps can also be sent through the instrument channel of colonoscopy to obtain rice grain-sized tissues for pathology sectioning or other special staining to further characterize the nature of the mucosal lesion histologically, such as the degree of inflammation, the degree of differentiation of cancer and other further grading, which is conducive to the understanding of the severity of the lesion and guides the formulation of the correct treatment plan or judging the therapeutic effect. Painless colonoscopy has precise therapeutic effect, and through the biopsy orifice of colonoscopy, endoscopic treatment can be carried out for some diseases or lesions of the colon, such as polyps, bleeding, foreign bodies, and so on. The advantage of painless colonoscopy compared with ordinary colonoscopy is that the patient is more relaxed during the examination, and the doctor can examine the lesions in the intestines faster and more attentively and carefully to avoid misdiagnosis and omission of diagnosis. Because of early detection and timely surgery, Mr. Zhang recovered quickly. Now, under the doctor’s advice, Mr. Zhang has painless colonoscopy twice a year. After his recovery, Mr. Zhang joined the community outreach team, spreading health knowledge and teaching the necessity of colonoscopy in person.