发声困难分为器质性和功能性两大类。在诊断器质性病变方面由于检查手段的进步,已可发现一些以前未发现的病变,如声带沟、声带纹(vergetures)、血管性声带炎以及微型喉蹼;但即使有明显的器质性病变,仍应想到可能有功能性因素并存。引起发声功能障碍的原因有:家庭或工作中的困 Dysphonia into organic and functional two categories. In the diagnosis of organic disease due to advances in examination methods, has been found in some previously undiscovered lesions, such as vocal grooves, vocal folds (vergetures), vocal cord inflammation and micro-throat webs; but even with obvious organic Lesions, should still think there may be functional factors co-exist. The causes of vocal dysfunction are: sleepy at home or at work