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小儿鼻出血是种常见现象。因小儿鼻腔粘膜娇嫩、毛细血管极为丰富,可又缺乏软组织保护,稍受刺激,就会流鼻血。出血的主要原因有:①气候干燥导致鼻腔发痒,小儿抠鼻腔,损伤了鼻腔粘膜下的毛细血管而发生出血。②用力擤鼻涕或不慎碰撞鼻部,发生鼻出血。③鼻部疾病,如鼻前庭炎、鼻炎、鼻腔脓肿,引起鼻中隔的毛细血管扩张等都有可能引起鼻出血。④全身性疾病引起的鼻出血、血友病、出血性紫癜、白血病、风湿热、维生素 C 及维生素K 缺乏等都有可能导致凝血功能障
Infantile nosebleed is a common phenomenon. Infantile nasal mucosa due to delicate, extremely rich capillaries, but also the lack of soft tissue protection, a little irritated, it will nosebleeds. The main causes of bleeding are: ① dry climate causes nasal itching, pediatric nose, damage the nasal mucosa of the capillaries and bleeding. ② force nose blowing or accidentally hit the nose, nosebleed occurred. ③ nasal diseases, such as nasal vestibulitis, rhinitis, nasal abscess, nasal septum caused by telangiectasia are likely to cause nosebleeds. ④ systemic diseases caused by nosebleeds, hemophilia, hemorrhagic purpura, leukemia, rheumatic fever, vitamin C and vitamin K deficiency may lead to coagulation disorders