先天性单纯性红细胞再生障碍性贫血,即先天性再生低下性贫血,亦称Diamand-Blacrfan贫血,本病甚为少见,诊断要点:①90％从婴幼儿时期开始不明原因的中至重度贫血。②网织红细胞减少,③白细胞和血小板不减少。④骨髓有核红细胞极少或缺,而巨核细胞、血小板和粒细胞增生正常。本病按病情可分为急性(包括特发性与继发性)和慢性(后天性与先天性)两大类,按病因分为先天性和后天性。后者又可分为原发和继发。我 Congenital simple red cell aplasia, congenital hypomitic anemia, also known as Diamand-Blacrfan anemia, the disease is rare, the main points of diagnosis: 90% from infancy to unexplained moderate to severe anemia. ② reticulocyte reduction, ③ white blood cells and platelets do not reduce. ④ rare or missing bone marrow erythroblasts, and megakaryocytes, platelets and granulocytes normal. The disease according to the disease can be divided into acute (including idiopathic and secondary) and chronic (acquired and congenital) two categories, according to the cause is divided into congenital and acquired. The latter can be divided into primary and secondary. I