亡陰証(syndrome/pattern of yin prostration),中醫証候名,屬陰液虧脫証類,因體液大量耗損,真陰衰竭所致。臨床以身熱,肢溫,汗出如油,呼吸氣粗,躁擾、譫妄,形體乾癟,眼眶深陷,面紅、唇枯,渴喜飲冷,小便少或閉,舌質暗紅,舌裂無津,脈細疾數等為特徵的証候。[1]