ＨＥ染色切片存放时间久远便会产生组织颜色褪变现象。陈旧ＨＥ染色切片的重染常遇到胞核难着色、染色对比差、组织易脱片的缺点。作者尝试用碱盐溶液处理,对135例陈旧ＨＥ染色示教切片进行重染,效果满意,现介绍如下。1　材料和方法11　材料　选用1975～1985年颜色褪变的ＨＥ染 HE stained sections stored for a long time will produce tissue fade phenomenon. Obsolete HE stained sections often encounter dyed staining of difficult to stained nuclei, poor contrast staining, the flaws of the tissue easily off. The author tried to use alkaline salt solution, 135 cases of stained old HE staining sections, the results are satisfactory, are described below. 1 Materials and Methods 11 Materials Selection of 1975-1985 color faded HE staining