The operation method of anal exhaustion should be divided into the following four steps: 1, all the medical equipment to be used should be prepared, and the patient who is going to do the anal exhaustion should be in the left lateral position or supine position. 2, the end of the rubber hose used for the exhaustion should be inserted into the water, and the other end should be connected with the patient’s anal canal, and it is necessary to pay special attention to the need to lubricate the anterior end of the patient’s anal canal before inserting it into the patient’s anal canal. 3, the patient’s anterior end of the rubber hose should be lubricated with water. The patient’s anal canal should be well lubricated before insertion. Insert the hose into the rectal area about 15-20cm, and fix the hose on the patient’s buttocks.3. Notify the patient to carry out the exhaust, and observe the actual situation of the exhaust at the same time, if you find that there is a poor exhaust, you should let the patient to change the position, and at the same time, massage the abdomen to help the gas to be discharged.4. Maintain the time of the exhaust in 20 minutes, and when the time is up, pull out the hose, and then clean up the patient’s anus in a timely manner. Timely hygiene cleaning.