Patients with ulcerative colitis and familial adenomatous polyposis ultimately require total colorectal resection with ileal pouch-anal anastomosis (IPAA), among others. IPAA surgery has become the preferred surgical procedure because it allows patients to have a better quality of life due to the preservation of normal defecation channels. Failure of bag storage after IPAA is a major concern for surgeons as well as patients. A range of surgical complications including inflammatory (storage pouch inflammation, storage pouch Crohn’s disease) as well as non-inflammatory (anal incontinence, anastomotic leakage, pelvic infection) and non-infectious, can lead to storage pouch failure. Postoperative bleeding after pouch storage is very rare. The article summarized more than 3,194 cases of pouch surgery and found that the incidence of postoperative pouch bleeding after IPAA was 1.5%, 66% of which occurred within 1 week after surgery. Fluid resuscitation should be given first to ensure circulating blood volume after bleeding occurs. Most patients underwent reservoir pouchoscopy to remove clots, followed by reservoir pouchoscopic electrocoagulation for hemostasis or norepinephrine enema (1:100,000). This is shown in the figure below. Conclusion of the study: application of norepinephrine enema is preferred after bleeding occurs, with an efficiency rate of 96%. Bleeding from the reservoir bag is uncommon and when it occurs non-surgical treatment is preferred.