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定义溶血性贫血是指红细胞破坏加速而骨髓造血功能代偿不足时所发生的一类贫血。溶血性贫血的红细胞生存时间常短至15～20天以下。当溶血发生时,若骨髓的造血功能足以代偿,可以不出现贫血,这种情况称为代偿性溶血病。如果骨髓的造血功能虽已加速,而红细胞被破坏的速度更快,于是出现贫血,即溶血性贫血。临床上常用的一种分类方法是根据红细胞过早破坏的根本原因,将溶血性贫血分成红细胞内在缺陷和外来因素所致的两大类。溶血性贫血的详细分类归纳如下:
The definition of hemolytic anemia refers to a class of anemia that occurs when accelerated destruction of red blood cells and bone marrow hematopoietic function compensated. Hemolytic anemia of erythrocytes survival time is often as short as 15 to 20 days. When hemolysis occurs, if the bone marrow hematopoietic function sufficient to compensate, can not appear anemia, this situation is called compensatory hemolytic disease. If the bone marrow hematopoietic function has accelerated, while the destruction of red blood cells faster, then there anemia, hemolytic anemia. A commonly used clinical classification is based on the root cause of premature destruction of red blood cells, hemolytic anemia is divided into internal defects and red blood cells caused by external factors into two categories. The detailed classification of hemolytic anemia is summarized as follows: