摘要篇首： Gastrointestinal bleeding is a common acute clinical emergency, with a mortality rate of 5%-12%.1 Most gastrointestinal bleeding is self-limited, but a small number of cases are difficult to treat due to an untraceable site and cause of bleeding, massive bleeding, serious illness, or other complications. Conservative treatment usually cannot achieve effective hemostasis.2 Blind exploratory laparotomy is risky and often leads to delayed postoperative recovery. In some cases, the bleeding site cannot be revealed even with surgery, which makes surgical treatment futile. In contrast, interventional therapy, a diagnostic and therapeutic technique secondary to traditional medical therapy and surgery, can be used to diagnose unexplained bleeding while simultaneously achieving immediate hemostasis.