【摘要】急性消化道出血分为急性上消化道出血和急性下消化道出血。急性上消化道出血是指屈氏韧带以上的消化道疾病引起的出血，包括胰管或胆管的出血及胃空肠吻合术后吻合口附近疾病引起的出血，年发病率为50/10万-150/10万，病死率7%-10%[1]。急性下消化道出血是指屈氏韧带以下的空肠、回肠、盲肠、阑尾、结肠和直肠的出血，不包括痔和肛裂的出血，占整个消化道出血的20%。主要表现为便血，可呈鲜红色、暗红色或柏油样，下消化道出血多能自止，但有10%-15%的下消化道出血须急诊处理。

    【关键词】消化道出血急性诊断思路

    Impatient digest a way bleed of diagnosis way of thinking

    CaoYi

    【Abstract】Impatient digest way bleed is divided into impatient top digest way bleed and impatient bottom digest way bleed.Impatient top digest a way bleed is bend surname ligaments above of digest way disease cause of bleed, include Yi tube or bile duct of bleed and the stomach jejunum fit together after fit together the Shu neighborhood disease cause of bleed, year outbreak rate is 50/100,000-150/100,000, ill rate 7%-10% [1] .Impatient bottom digest a way bleed is bend surname ligaments the following of jejunum, return to bowel, appendices, appendices, colon and rectum of bleed, don't include a hemorrhoid and anus crack of bleed, share whole digest way 20% for bleed.The main performance is then a blood, can present fresh red, dark red or asphalt kind, bottom digest way bleed many ability from, but have 10%-15% of bottom digest way bleed beard emergency call processing. ......