患者,男,32岁,农民。有常用山涧溪水洗脸的习惯。因双鼻间歇性出血3个月,多方求治无效,遂到我科求治。前鼻镜检查,见右鼻腔有血迹,未见明显破损,鼻甲黏膜充血,未见异物,左鼻腔黏膜完整,有陈旧性血痂。间接鼻咽镜检查:鼻咽黏膜光滑,无出血点。电子鼻咽喉镜检查,见右侧鼻腔筛漏斗 Patient, male, 32 years old, farmer. There are commonly used mountain stream wash habit. Intermittent bleeding due to double-nasal 3 months, seeking treatment for multiple parties ineffective, then to my department for treatment. Before the nose examination, see the right nasal blood, no obvious damage, turbinate mucosal hyperemia, no foreign body, left nasal mucosa intact, with old blood scab. Indirect nasopharyngoscopy: nasopharyngeal mucosa smooth, no bleeding point. Electronic nasopharyngeal laryngoscopy, see the right nasal sieve funnel