上消比道大出血是内科常见急症，正确及时的病因诊断直接关系到治疗和预后。单凭病史和一般检查作出诊断常不可靠，而上消化道钡餐阳性率一般低于60％。随着纤维胃镜在我市的推广，越来越显示它在 On the elimination of bleeding is a common medical emergency, the correct and timely diagnosis of the cause of the disease is directly related to the treatment and prognosis. Diagnosis alone is usually unreliable based on medical history and general examination, while the upper gastrointestinal barium meal positive rate is generally less than 60%. With the promotion of fiber endoscopy in our city, it shows more and more