Uterine arteriovenous fistula hemorrhage usually occurs after a postpartum or abortion, or after a curettage. Uterine arteriovenous fistula hemorrhage is one of the more dangerous complications of obstetrical hemorrhage, as it is usually caused by damage to the uterine arteriovenous fistula after abortion or curettage. The hemorrhage is usually caused by continuous vaginal bleeding after delivery, or by lesions in the tissue system caused by residual placental tissue after abortion. Hemorrhage from arteriovenous fistulas is usually heavy and urgent and should be treated aggressively to stop the bleeding and treat the symptoms. Therefore, it is recommended that if abnormal bleeding occurs after delivery or after abortion and curettage, you should go to the hospital as soon as possible for appropriate examination and treatment to avoid hemorrhagic shock.