鼻出血(鼻衄)在儿童中比较常见。原因甚多:一种原因是鼻子本身受到损害,如外伤、鼻前庭炎、干燥性或萎缩性鼻炎,以及异物浸入鼻腔,引起局部炎症等;另一种原因是全身性疾患引起,如血小板减少性紫癜、再生障碍性贫血、白血病等血液病,感冒,肝硬变,维生素A及K缺乏等,均可引起鼻出血。在天气干燥的季节,鼻粘膜因干燥充血,毛细血管极易破 Epistaxis (epistaxis) is more common in children. There are many reasons for this. One reason is that the nose itself is damaged, such as trauma, nasal vestibulitis, dry or atrophic rhinitis, and foreign body immersion in the nasal cavity, causing local inflammation, etc. Another reason is systemic disorders such as thrombocytopenia Purpura, aplastic anemia, leukemia and other blood diseases, colds, cirrhosis, vitamin A and K deficiency, can cause nosebleeds. Dry weather in the season, nasal mucosa due to dry congestion, capillaries easily broken