毒陷心肝証(syndrome/pattern of toxin sinking into the heart and liver),中醫証候名,屬疫毒內閉証類,因疫毒或邪毒熾盛,邪正相爭,內陷心肝所致。臨床以發熱,遍身斑疹突然隱沒,神昏、譫語,肢體抽搐,舌質暗紅,脈沉細數,指紋紫黯,可伴見唇口紫紺,疹色紫暗等為特徵的証候。[1]