遗传性高铁血红蛋白血症是一种罕见的先天性疾病。本病的主要特征是有家族史,出生后或儿童时期即开始青紫,但无先天性心脏病体征和心肺功能不全症状,无杵状指,有高铁血红蛋白血症,一部分患者经维生素C和亚甲蓝治疗后发绀可减轻或暂时消失。本文报告一个已遗传四代的青紫家系。例1 男,38岁,出生时即青紫,从无心慌气急史,偶有头昏、无其他不适。能从事体力劳动,胜任日 Hereditary methemoglobinemia is a rare congenital disease. The main feature of this disease is a family history, after birth or childhood purple bruising began, but no signs of congenital heart disease and cardiopulmonary dysfunction symptoms, without clubbed fingers, methemoglobinemia, some patients by vitamin C and Asia Cyanide treatment after cyanosis can be reduced or temporarily disappear. This article reports a blue-purple pedigree that has been inherited for four generations. Example 1 Male, 38 years old, purple bruise at birth, from no mood panic, occasional dizziness, no other discomfort. Can engage in manual labor, Competent Day