呕血常为肝硬化、消化道溃疡、肿瘤等疾病引起。现我院遇１例因甲状腺上动脉瘤破裂引发呕血，报道如下。病例男，６７岁。以阵发性右下肢活动受限，头涨痛，发热为主诉入院。查体：BP２１．３?１０．６kPa。神清，咽赤，双扁桃体肿大，双肺呼吸音清，未闻及干、湿罗音，心音有 Hematemesis often cirrhosis, peptic ulcer, cancer and other diseases caused. Now a case of hospital encounter due to rupture of the thyroid oncology anemia hematemesis, reported as follows. Case male, 67 years old. Paroxysmal right lower extremity activity limited, head up pain, fever-based admission to the hospital. Physical examination: BP21.3? 10.6kPa. Shen Qing, pharynx red, double tonsil enlargement, lung breath sounds clear, no smell and dry, wet rales, heart sounds