28岁男,19年至今三年尿检基本都有肾小管上皮细胞或(检查结果无肾小管上皮细胞项显示时出现小圆上皮细胞)。数量最多2.1,少时1.0。19年尿蛋白弱阳性,20、21年阴性。上月弱阳性,本月阴性(但前晚饮水较多,测时尿比重1.007 参考值1.005-1.03)。尿检其余项目基本正常(上月酮体高可能是节食减肥导致,本月已无),肾彩超正常,肾功血肌酐68-82浮动,尿酸20年底体检正常,今年初441,上月522(期间饮食豆类,汤类较多),控制饮食两周472。尿素偏低2.14。请问多次尿检均有肾小管上皮细胞出现一般都是什么原因,怎么治疗或恢复?
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