大腸津虧証(syndrome/pattern of fluid depletion in the large intestine),中醫証候名,屬大腸虛証類,因津液虧損,腸失濡潤所致。臨床以大便燥如羊屎,數日一行,舌質紅而干,舌苔少,脈細數,可伴見心煩,口渴,腹脹等為特徵的証候。[1]