血分証(syndrome/pattern of blood phase),中醫証候名,屬血分証類,因溫熱疫毒等邪深入血分,耗血傷陰,動血生風所致。臨床以壯熱或夜熱早涼,手足抽搐或蠕動,神昏、譫語,斑疹紫黑,舌質深絳,舌苔少或無,脈弦數,指紋紫黑,伴見吐血或衄血、尿血、便血等為特徵的証候。[1]