人到老年,除了全身疾病和鼻子局部病因以外,许多生理上的特殊情况也会造成鼻出血.例如,老年人鼻粘膜往往萎缩变薄.腺体细胞退化,分泌液减少,使鼻粘膜容易干燥破裂;同时鼻腔血管常常硬化,变得脆弱,如用力排便、咳嗽、喷嚏,或用手按摩鼻部过重,都会 People to the elderly, in addition to systemic diseases and local causes of the nose, many physiological special circumstances can also cause nosebleeds.For example, the elderly often shrink nasal mucosa thinning glandular cell degradation, secretion of fluid to make the nasal mucosa easy to dry Rupture; while nasal blood vessels often harden, become vulnerable, such as forced defecation, coughing, sneezing, or hand massage nose too heavy, will