便血·脾胃虚寒证(hematochezia with syndrome of deficient cold of spleen and stomach)是指脾胃阳虚,虚寒内生,以便血紫暗,甚则黑色,腹部隐痛,喜热饮,畏寒肢冷,面色不华,神倦懒言,便溏,舌淡,脉细等为常见症的便血证候。