目的　了解母乳性黄疸对肾功能的影响。方法　对 87例母乳性黄疸患儿监测尿视黄醇结合蛋白 (RBP)、尿β2 -微球蛋白 (β2 -MG)水平。结果　母乳性黄疸患儿胆红素越高 ,尿视黄醇结合蛋白及尿 β2 -微球蛋白增高越明显。结论　母乳性黄疸患儿胆红素水平达到一定程度时 ,可损害肾功能 ,应适当进行干预 Objective To understand the effect of breast milk jaundice on renal function. Methods Serum urinary retinol binding protein (RBP) and urinary β2 - microglobulin (β2 - MG) levels were measured in 87 children with milk jaundice. Results bilirubin in breast milk jaundice children with higher urinary retinol binding protein and urinary β2 - microglobulin increased significantly. Conclusion When the level of bilirubin in breast-milk jaundice reaches a certain level, renal function may be impaired and should be properly intervened