鼻出血又称鼻衄,为全身及局部多种疾病的一个常见症状。过去认为有90％出血位于鼻中隔的前下方(Little氏区),由于看得见,一般比较容易控制,不需住院治疗。然而却有12％鼻腔后部大出血,虽经多方细致寻找仍难确定出血部位,只见鲜血从后鼻孔经咽壁流下,对病人健康影响较大,心理负担也较重, Epistaxis, also known as epistaxis, is a common symptom of systemic and local multiple diseases. In the past, 90% of bleeding was thought to be located in the anterior (below) area of ​​the nasal septum (Little’s area), which is generally easier to control and less hospital-based because it is seen. However, there are 12% of the rear nasal hemorrhage, although careful and meticulous look is still difficult to determine the bleeding site, I saw blood flow from the posterior nostril through the pharyngeal wall, a greater impact on patient health, psychological burden is also heavier,