消化道出血诊治重点是准确定位，要重视病史、体检和一般检查的提示作用。特殊检查中，首选纤维内镜。小肠出血可先通过CT、同位素或胶囊内镜初步筛查，再经小肠镜检查并给予止血。消化道大出血首选数字减影血管造影（DSA）检查。对无法明确诊断的病人，可进行手术探查和术中肠镜检查。

Diagnostic and therapeutic pathway for gastrointestinal hemorrhage        ZHU Wei-ming. Research Institute of General Surgery，Clinical School of Medicine, Nanjing University, Nanjing General Hospital of Nanjing Military Command，PLA，Nanjing 210002, China
Abstract    The key to the management of gastrointestinal  hemorrhage is localization, which can be achieved by detail review of the patients’history, physical examination and scrutinizing the blood. Endoscopy is the first choice for gastroduodenal and colorectal bleeding. For small bowel hemorrhage, CT scan, isotope or wireless capsule endoscopy provide nontraumatic examination for the patients. DSA is very important for massive bleeding, which provides visualization as well as control of bleeding by embolization. For the difficult patients, intraoperative endocopic examination enable accurate localization for resection.