鼻出血（鼻■）是耳鼻喉科常见症状，在学校师生中经常发生，尤其多见于春季和秋季气候干燥时。由于鼻腔粘膜菲薄，鼻中隔偏曲，以及血压增高、凝血功能障碍或血管张力改变的全身疾病，受到外界刺激后，最容易引起鼻部肿胀、渗出、发炎、粘膜充血糜烂，均可导致出血。鼻出血的 Epistaxis (nasal ■) is a common otorhinolaryngology symptoms, often occur in school teachers and students, especially in the spring and autumn when the climate is dry. Due to the nasal mucosa meager, nasal septum deviation, and blood pressure, coagulation disorders or changes in vascular tone of systemic diseases, subject to external stimuli, the most likely to cause nasal swelling, exudation, inflammation, mucosal erosion erosion, can lead to bleeding. Bleeding nose