消化道出血是临床上常见病况,历来引起内外科医师的关注,国内外有关杂志经常讨论此问题。近年来由于新诊断方法的应用,使这些问题得到较为满意的解决。但是一些比较罕见的出血病因,因其罕见,给临床的诊断工作带来困难,从而延误病情甚至危及病人生命。血管疾病所致的消化道出血虽罕见但却是一种重要原因。随着疾病谱的改变,人们认知能力的提高以及影像及内镜技术等的新发展,该类原因所致消化道出血日益增多,本文 Gastrointestinal bleeding is a common clinical condition that has aroused the concern of surgeons and surgeons. Domestic and foreign magazines often discuss this issue. In recent years, due to the application of new diagnostic methods, these problems have been satisfactorily solved. However, some of the rare causes of bleeding, because of its rare, to the clinical diagnosis of difficult, and thus delay the disease or even endanger the lives of patients. Although gastrointestinal bleeding caused by vascular disease is rare, but it is an important reason. With the change of disease spectrum, the improvement of people’s cognitive abilities and the new development of imaging and endoscopic techniques, the number of gastrointestinal bleeding caused by such causes is increasing day by day.