Wu M.-C.Hsu Y.-P.HO-HSIUNG LINHsiao S.-M.2021-03-032021-03-0320130024-7758https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881137588&partnerID=40&md5=6a19b7e1b6357442d3af5f6d2d8bcedfhttps://scholars.lib.ntu.edu.tw/handle/123456789/550199BACKGROUND: Symptomatic uterine diverticula are rare and, to our knowledge, have never been reported as a cause of postpartum hemorrhage. CASE: A 35-year-old woman presented with severe vaginal bleeding on the 47th day after a cesarean section. She had received endometrial cu-rettage due to postpartum hemorrhage a few days earlier in another local hospital. Transvaginal ultrasound revealed a thickened heteroechoic endometrium and an isolated isthmic heteroechoic cystic lesion. Repeat endometrial curettage was performed initially. However, recurrent vaginal bleeding and hypovolemic shock occurred 2 days later. Active bleeding from a debris-full diverticulum in the lateral wall of the uterine isthmus was found during an emergent hysterotomy. The myometrium was sutured to obliterate the diverticulum. The follow-up course was uneventful. CONCLUSION: Uterine diverticula may present as isolated isthmic heteroechoic cystic lesions and may be overlooked as a cause of severe delayed postpartum hemorrhage. ? Journal of Reproductive Medicine?, Inc.Cesarean section; Delayed postpartum hemorrhage; Diverticu-lum; Postpartum hemorrhage[SDGs]SDG3adult; article; case report; cesarean section; curettage; female; human; hypovolemic shock; hysterotomy; postpartum hemorrhage; priority journal; transvaginal echography; uterine diverticulum; uterus disease; vagina bleeding; Adult; Cesarean Section, Repeat; Diverticulum; Female; Humans; Hysterotomy; Postpartum Hemorrhage; Pregnancy; Shock; Uterine Diseasesjournal article239470872-s2.0-84881137588