上热下寒证(syndrome/pattern of heat in the upper and cold in the lower),中医证候名,属寒热错杂证类,因秉质阳虚阴凝,或下焦阴寒内蕴,郁而化热,或复感风热阳邪,上攻头咽胸膈所致。临床以头痛、目赤,咽干、咽痛,频欲作呕,呕吐酸腐,胸膈烦热,或伴见脘腹疼痛,喜温、喜按,大便溏泄,小便清长,下肢酸楚,遇冷则甚等上热与下寒征象同时并现为特征的证候。[1]