声音嘶哑是歌唱演员和教师的“职业病”。而其中以小学教师发病率最高。其主要症状为声音嘶哑,音色改变;严重者甚至失音。喉镜检查发现有声门闭合不良,声带小结或肥厚,甚至息肉·发病主要原因是发声过度及发声方法不当。另外,发病率又与呼吸道疾病有关。经常伤风感冒可导致发声器官发炎,引起声带充血,水肿,继而发生声带肥厚,小结甚 Hoarseness is the “occupational disease” of singing actors and teachers. Among them, the highest incidence of primary school teachers. The main symptoms of hoarseness, the sound changes; severe or even aphonia. Laryngoscopy revealed a poor glottis closure, vocal nodules or hypertrophy, and even polyp · The main reason is the excessive vocalization and vocal method improper. In addition, the incidence is related to respiratory diseases. Frequent cold and flu can lead to inflammation of the vocal organs, causing vocal cord congestion, edema, followed by vocal cord hypertrophy