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多种维生素及微量元素缺乏能引起贫血。虽然营养性贫血最常见的病因是缺铁,其它营养物质缺乏,如维生素 A、维生素 C、维生素 E、维生素 B_6、维生素 B_2、叶酸、维生素 B_(12)及铜缺乏也可引起贫血。混合性营养紊乱,如饥饿、蛋白质缺乏均可伴有贫血。本文将讨论除缺铁性贫血外的其它营养性贫血。维生素 A 缺乏慢性维生素 A 缺乏引起的贫血与缺铁性贫血相似:平均血红蛋白容量(MCV)及平均血红蛋白(MCH)降低、红细胞体积明显改变、形态异常及血清铁降低。但是两者也有明显不同:维生素 A 缺乏伴贫血时肝脏与骨
A variety of vitamins and trace elements can cause anemia. Although the most common cause of nutritional anemia is iron deficiency, other nutrient deficiencies such as vitamin A, vitamin C, vitamin E, vitamin B_6, vitamin B_2, folic acid, vitamin B_ (12), and copper deficiency can also cause anemia. Mixed nutritional disorders, such as hunger, protein deficiency may be associated with anemia. This article will discuss other nutritional anemia in addition to iron deficiency anemia. Vitamin A Deficiency Chronic vitamin A deficiency causes anemia similar to iron deficiency anemia: mean hemoglobin (MCV) and mean hemoglobin (MCH) are decreased, volume of erythrocytes is significantly altered, and morphological abnormalities and serum iron are decreased. But there is a clear difference between the two: vitamin A deficiency with liver and bone in anemia