下消化道出血临床常见 ,急性大量出血常常会危及生命 ,发病病因纷繁多种 ,其出血量多少 ,速度快慢 ,在肠腔内停滞时间的长短 ,临床表现不同 ,故常常容易漏诊、误诊。本文总结了我院 1992年～ 1999年收治的下消化道出血 4 0例的诊治经验 ,探讨如何进一步提高诊治水平。1　临床资 Common clinical lower gastrointestinal bleeding, acute massive bleeding often endanger life, a variety of causes of the disease, the amount of bleeding, speed, length of time in the intestine stagnation, clinical manifestations are different, it is often easy to miss and misdiagnosed. This article summarizes the diagnosis and treatment of 40 cases of lower gastrointestinal bleeding treated in our hospital from 1992 to 1999 to explore how to further improve the diagnosis and treatment. 1 clinical resources