Background: It has been established that lack of circumcision increase
s the risk of urinary tract infection in infants. During the first six
months, the presence of foreskin is associated with a greater quantit
y and a higher concentration of uropathogens in the periurethral area.
Very little is known about this association in older males. Objective
: To compare the periurethral bacteriology of uncircumcised healthy ma
les of more than one year of age. Methods: The periurethral area of 12
5 uncircumcised and 46 circumcised healthy males (mean age, 26.5 and 2
8.3 years, respectively) was swabbed and cultured for facultative and
anaerobic bacteria, genital mycoplasmas and Chlamydia trachomatis. Res
ults: Facultative Gram positive cocci predominated in both groups (62%
and 80%, respectively). Pure culture of facultative Gram negative rod
s was more common in uncircumcised males (17% v 4% in circumcised male
s, p = 0.01). Streptococci, strict anaerobes and genital mycoplasmas w
ere found almost exclusively in uncircumcised males of more than 15 ye
ars of age. No case of C trachomatis was identified. Conclusions: The
higher prevalence of potential uropathogens in the subpreputial space
is in accordance with a previous finding of increased risk of urinary
tract infection in uncircumcised young men. Our results also support t
he role of the prepuce as a reservoir for sexually transmitted organis
ms.