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Pediatr Surg Int. 1998 Mar;13(2-3):146-8.

Does circumcision alter the periurethral bacterial flora?

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  • 1Department of Pediatric Surgery, John Radcliffe Hospital, Oxford, UK.

Abstract

A prospective study of 25 boys who underwent circumcision for medical reason was performed. Specimens of periurethral bacterial flora were taken before operation as well as 3 weeks after surgery, so that each boy acted as his own control. Before circumcision, 13 (52%) harboured uropathogenic organisms (Escherichia coli and other coliforms, Enterococcus spp, Proteus spp, Pseudomonas spp, and Klebsiella spp); after circumcision, none of the boys had uropathogens, the only organisms cultured from the periurethral region being skin commensals. We postulate that circumcision converts a 'cul-de-sac' that is a reservoir of organisms capable of causing ascending urinary tract infection into a surface colonised by natural skin organisms. This study provides circumstantial evidence supporting the idea that circumcision in well-selected patients may confer protection from urine infection.

PMID:
9563029
[PubMed - indexed for MEDLINE]
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