小儿时期,特别是小婴儿急性泌尿系感染的临床表现与成人不同,主要表现在全身症状比较突出,有持续高热、苍白、拒奶、食欲不振、呕吐、腹泻、体重增长缓慢及发育延缓,而泌尿系症状反而很轻。新生儿及小婴儿机体抵抗力差,全身严重感染时,泌尿系常被累及,合并泌尿系感染,也应予以重视。随年龄增长泌尿系感染局部症状逐渐明显,一些小婴儿排尿时烦躁啼哭不止,尿布频繁潮湿是尿频的表现。年 The clinical manifestations of acute urinary tract infections in infancy, especially in young infants, are different from those in adults and are mainly manifested in the prominent systemic symptoms of persistent high fever, paleness, refusal to milk, loss of appetite, vomiting, diarrhea, slow weight gain and delayed development Urological symptoms are very light. Neonatal and infant body resistance is poor, severe systemic infection, the urinary tract is often involved, with urinary tract infection, should also be taken seriously. Urinary tract infection with age gradually local symptoms gradually obvious, some babies urinating fret more than crying, diapers frequent wetness is the performance of urinary frequency. year