血液病亦称为造血系统疾病,包括原发于造血系统疾病(如白血病原发于骨髓组织等)和主要累及造血系统疾病(如缺铁性贫血等)。血液病可以是原发的,其中大多数是先天性造血功能缺陷或骨髓成分的恶性改变,也可以是继发的,其他系统的疾病如营养缺乏、代谢异常及物理化学因素等也可以对骨髓系统造成不良反应,血液或骨髓成分有较明显改变者,亦属血液病的范畴。 Blood diseases are also referred to as hematopoietic system diseases, including diseases originating in the hematopoietic system (such as leukemia originating in the bone marrow, etc.) and diseases mainly involving the hematopoietic system (such as iron deficiency anemia). Hematopathy can be primary, most of them are hematopoietic defects or malignant changes in bone marrow components can also be secondary, other diseases of the system such as nutritional deficiencies, metabolic disorders and physicochemical factors can also be on the bone marrow System caused by adverse reactions, blood or bone marrow components were more obvious changes, also belong to the category of blood diseases.