人体鼻腔内是一层很薄的粘膜,粘膜下毛细血管十分丰富,好似纵横交错的网一样。特别是鼻中隔的前下方,此处血管丰富且表浅,粘膜薄而脆弱,又贴近软骨,所以血管很容易破裂而难以收缩止血,平时一旦不小心碰到鼻子,或因气候干燥发生鼻出血,绝大部分都在这个部位,故有人称此处为“出血区”。 The human nasal cavity is a thin layer of mucous membranes, submucosal capillaries are very rich, like criss-cross the same network. Especially before and after the nasal septum, here rich and superficial blood vessels, thin and thin mucous membrane, but also close to the cartilage, so the blood vessels are easy to rupture and difficult to stop bleeding, usually inadvertently hit the nose, or due to dry weather occurs nosebleeds, Most are in this area, so some people call this place as “bleeding area.”