白及苦甘、性凉,历来用以治疗肺伤咳血、衄血、外疡出血等疾患。五十年代,临床及实验研究就已证实,该药对胃、十二指肠溃疡合并上消化道出血有显著疗效,已为多数医家所乐用。晚近由于纤维内窥镜的逐渐普及,临床上在四诊的基础上,参合内镜肉眼所见及病理检查,大 White and bitter, cool, has always been used to treat lung injury, hemoptysis, blood stasis, external hemorrhage and other diseases. In the 1950s, clinical and experimental studies have confirmed that the drug has a significant effect on gastric and duodenal ulcers combined with upper gastrointestinal bleeding and has been used by most medical doctors. Due to the increasing popularity of fiber endoscopes in the near future, clinically based on the four consultations, the endoscopic involvement of the endoscope and pathological examination, large