血友病类出血性疾病是一组遗传性出血性疾病,包括血发病甲(又称因子Ⅷ缺乏症),血友病乙(又称因子Ⅸ缺乏症)及血友病丙(又称因予Ⅺ缺乏症)。其临床特征为终身具有自发性或轻微损伤后出血倾向。此类疾病在国内发病数较国外少,有关诊断及治疗问题亦未引起足够重视,往往造成误诊。本院 Hemophilia hemorrhagic disease is a group of hereditary hemorrhagic diseases, including blood disease A (also known as factor VIII deficiency), hemophilia B (also known as factor IX deficiency) and hemophilia C (also known as To Ⅺ lack of disease). Its clinical features are bleeding tendency over a lifetime of spontaneous or minor injury. The incidence of such diseases in the country is less than that in other countries. The problems related to diagnosis and treatment have not been given enough attention and often result in misdiagnosis. Our hospital