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目前国内新生儿血象（含血常规）日龄值尚不完备。本文对日趋普及的电子法为主，并以常规法部份对照，前瞻性地观测了40例足月正常新生儿血象十项值28天内的动态变化，获取了较准确的数据，提供了适合我国的新生儿血象十项日龄别正常参考值。并经统计学显示，除MCHC外，余各项值均有显著的日龄差异，但无性别差异；RBC、Hb、Hct在均呈明显的两段式下降，其机制可能分别同红细胞破坏过多和红细胞生成受抑有关；MCV、MCH呈均匀缓降式；Retic呈后期陡降式，生后1周趋于稳定，支持上述的机制；WBC呈先期陡降式、生后3天便趋于稳定但仍校一般儿童为高，分类中幼稚粒细胞、有核红细胞和较多的嗜酸粒细胞符合新生儿血液特点；N和L的交叉约在第5天；唯PLT随日龄渐升，1周后迅升然后维持一段高峰至4周末略降，是否与新生儿凝血、止血机制渐成熟有关，值得进一步探讨。
At present, domestic neonatal blood (including blood) day value is not complete. In this article, the electronic method is becoming more and more popular. The dynamic changes of ten normal values of 40 full-term normal newborns within 28 days were observed prospectively by the conventional method. More accurate data were obtained, China’s newborn blood ten days of age do not normal reference value. According to the statistics, all the values except for MCHC had significant differences in the days, but no gender differences; RBC, Hb, Hct showed a significant two-stage decline, the mechanism may be the same as the destruction of erythrocytes Retinoid decreased gradually, and retarded erythropoiesis. MCV and MCH showed a gradual descending pattern. Retic showed a steep descending pattern in the later period, which tended to be stable in the first week of life, supporting the above mechanism. WBC showed a steep descending pattern, In stable but still school-aged children as a whole, the classification of immature granulocytes, erythroblasts and more eosinophils consistent with neonatal blood characteristics; N and L cross about the 5th day; only PLT with age L, a week after the rapid rise and then maintain a peak to slightly lower 4 weeks, whether with neonatal coagulation, hemostasis mechanism is mature, it is worth further study.