随着年龄的增高,鼻粘膜趋向萎缩,并发生扁平上皮化,鼻腔毛细血管扩张,脆性增加,易破裂出血。老年人鼻粘膜血管壁中,小动脉肌层为胶原组织所代替,大血管壁钙化,血管壁弹性差,皮下组织粗糙易造成反复性出血,出血不易自止,有高血压、动脉硬化的老人,鼻 With age, nasal mucosa tends to shrink, and the occurrence of flat epithelialization, nasal capillaries dilated, increased brittleness, easy to break bleeding. The elderly nasal mucosal vascular wall, the small artery muscle tissue replaced by collagen tissue, large vessel wall calcification, poor vascular wall elasticity, subcutaneous tissue rough and easy to cause repeated bleeding, bleeding is not easy to stop, with hypertension, arteriosclerosis in the elderly ,nose