Expandable anal canal exhaust method

The invention discloses an expandable anal canal exhaust method, and belongs to the technical field of anal canal exhaust method equipment. The expandable anal canal exhaust method comprises the following specific steps that S1, an anal canal exhaust device is prepared in advance, and matched medical instruments are also prepared in advance; S2, normal saline for filling an enema bag and soapy water with the concentration of 1% are prepared; S3, the left side lying position of a patient is adopted for operation; and S4, the anal canal exhaust device is connected, an anal canal is inserted into the rectum of the patient, and the insertion depth of the anal canal into the rectum is 15-18 cm. According to the expandable anal canal exhaust method, by adopting the anal canal exhaust device, when anal canal exhaust is carried out, a certain amount of solution is injected into the colon of the patient from the anus and the rectum through the enema bag so as to help the patient to defecate and exhaust, and a control