胎萎不长·气血两虚证(retarded growth of fetus with syndrome of deficiency of both qi and blood)是指血虚气弱,胎元失养,以妊娠宫体小于妊娠月份,胎儿存活,面色淡白或萎黄,身体羸弱,头晕心悸,神疲少气,舌淡嫩,苔少,脉稍滑细弱无力等为常见症的胎萎不长证候。