尽管通过幽门螺杆菌的根治降低了消化性溃疡及其并发症的发生率,但和从前一样,上消化道出血仍是最常见的胃肠急症。90年代初美国的回顾性研究显示其发病率为30-102/10万,从30-90年代间提高了30倍,男性发病率是女性的2倍.90％以上的出血发生在院外。英国的发病率为103-170/10万。在德国 Although the cure for peptic ulcer and its complications is reduced by radical H. pylori, as before, upper gastrointestinal bleeding is still the most common gastrointestinal emergency. A retrospective study by the United States in the early 1990s showed a 30-102 / 100,000 incidence rate, a 30-fold increase from the 30-90s, and a 2-fold higher prevalence among men than women, with more than 90% of bleeding occurring outside the hospital. The incidence in the United Kingdom is 103-170 / 100,000. in Germany