Many patients with anorectal disease have difficulty urinating after surgery, which is medically known as urinary retention. What are the prevention and treatment methods? Urinary retention has the following causes 1. sacral anesthesia or lumbar anesthesia has not yet recovered; 2. severe pain at the anal surgery site; 3. compression by intra-anal fillings or excessive and tight surgical pressure bandages; 4. urinary system diseases such as prostate hypertrophy and prostatitis are more likely to occur in patients; 5. mental and environmental factors, too nervous after surgery, not used to bed or ward urination. What are the prevention methods? Firstly, preoperative bedside urination exercises; secondly, appropriate treatment should be given to patients with prostatic hypertrophy or urethral stricture before surgery; once again, dressings and thongs should be loosened and tightened appropriately. Of course, it is essential to contact the patient’s fear before surgery, stabilize the patient’s emotions after surgery, and apply analgesic drugs appropriately. What to do if urinary retention occurs Six hours after surgery, if there is no bleeding concern, you can remove the intra-anal stuffing or loosen the thong bandage; mentally relax and turn on the tap and listen to the sound of running water to induce urination; use hot compress method to warm water (hot water bag) on the small abdomen (bladder area) or rinse the perineum; massage the bladder area; acupuncture points such as Sanyinjiao, Guanyuan and Waterway with pain relief points at the same time; make tea with lantern grass and bamboo leaves to drink. If the above measures are still ineffective, catheterization should be performed, and aseptic operation should be strictly enforced during catheterization to prevent secondary urinary tract infection.