出血是临床上许多疾病的共同表现,但其发病机理并不相同。一般导致出血的原因可归纳为血管因素,血小板因素和凝血功能异常三方面。而临床用于止血的药物通常仅能作用于止血的某个或某些环节,故当遇有出血表现的患者时,应结合原发疾病考虑其出血的原因,选择有针对性的药物止血,否则将会延 Bleeding is a common clinical manifestations of many diseases, but its pathogenesis is not the same. The general cause of bleeding can be summarized as vascular factors, platelet factors and coagulation disorders in three areas. The clinical application of hemostatic drugs usually only act on one or some of the hemostatic aspects of bleeding, so when patients with bleeding manifestations, should be combined with the primary disease to consider the reasons for bleeding, select the targeted drugs to stop bleeding, Otherwise it will be delayed