A few years ago, I was invited by the Department of Surgery to help treat a patient who had not had a bowel movement for several days. The patient was an 85-year-old woman who was clear, thin, and lying in bed. The surgeon had already given the patient a 500-milliliter enema with Chinese herbs, but the patient did not pass any gas, nor did she have any feeling of wanting to pass gas. I put on gloves to do anal fingerprinting, when the patient was lying on the left side of the bed, I stood at the back of the patient’s back and bent over to do anal fingerprinting, my student stood at the end of the bed. When fingering as far as possible to the anus, I stretched, found that the rectal memory accumulation of fecal water without other occupying masses, I just pulled out the finger has not straightened up the waist, the patient’s anus will be a large number of fecal gas spewed out, splashed in the isolation of the students and me on the coat. Inspired by this incident, after doing colonoscopy when the patient more abdominal distension discomfort, we do finger to help the patient exhaust to eliminate the patient’s abdominal distension discomfort. Specific practice is: to do colonoscopy to the patient after the withdrawal of the mirror, but also let the patient lying on the left side of the bed, the doctor wore gloves index finger coated with bupivacaine adhesive paste, index finger inserted into the anus to the direction of the tailbone expansion, as far as possible to straighten the anus right angle, so that the patient and the doctor to cooperate with the action, the patient will be asked to ventilate (farting), (the doctor to use gauze or toilet paper to put the patient’s anus around a good pad, or contamination of bed linen,) when the presence of the intestinal tract (The doctor should put gauze or toilet paper around the patient’s anus and pad it well, otherwise it will pollute the bed sheet.) At this time, the gas and liquid in the intestinal tract will be discharged, and then several times, the end of the colonoscopy will be basically free of abdominal pain and bloating after the patient gets out of bed. Once to a friend to do colonoscopy, told her to have abdominal distension can exhaust (fart), do not be embarrassed, because as long as the colonoscope is open with the inevitable gas, otherwise no gas can not fill the intestinal lumen can not be checked. When the exit mirror, she frequently exhaust, the end of the examination, she told me that the examination is basically painless, so that the patient along with the exit mirror moment to do the exhaust action is better to discharge. Adopted my friend’s suggestion, let the assistant who inserted the mirror to insert the index finger into the anus to the direction of the tailbone expansion, at this time to let the patient exhaust, so that the gas will be rapidly discharged, lifting the discomfort of abdominal distension to do colonoscopy.