The use of the enema bag is to adjust the position, lubricate the anal canal, adjust the position of the enema bag, maintain a fixed flow rate, maintain static and finally wipe clean. 1. Adjust the position: according to the needs of the disease, the patient is instructed to keep the knees bent and lie on the side, and the buttocks are kept in the exposed state. 2. Lubricate the anal canal: the operator uses paraffin oil to lubricate the anal canal and the anus as well as the surrounding tissues. 3. Adjust the position of the enema bag: the enema bag is hung in the shelf 40-60cm above the buttocks, and then inserted into the patient’s anus after exhausting the anal canal, with an insertion depth of 7-10cm for adults. 4. Maintain a fixed flow rate: loosen the anal tube clamp and maintain a fixed flow rate to the patient’s rectum for continuous infusion until the enema bag liquid infusion is complete. 5. Keep still: the medical staff will pull out the anal tube from the anus, and advise the patient to keep still as much as possible, so that the enema liquid in the patient’s body to stay 5-15 minutes to fully soften before defecation, so that the accumulation of fecal matter in the colon, rectum from the body. 6. Wipe clean and clean up: after the enema, the patient’s anus should be wiped clean and clean up the relevant objects. If the patient needs an enema, it is recommended to consult a doctor in time, under the guidance of the doctor for enemas.