Congenital phimosis occurs in 96% of newborns, with the tip of the glans visible in only 50% of newborn boys.[3]com.bmj.content.model.Caption@78dcf65[Figure caption and citation for the preceding image starts]: Physiological phimosisFrom the collection of Nicol Corbin Bush, MD [Citation ends]. In a prospective evaluation of more than 1000 boys over 8 years of follow-up in Denmark, congenital phimosis was present in 8% of 6- to 7-year-olds. Prevalence in this group declined to 1% of 16- to 17-year-old boys.[4] In Japan, the prevalence of congenital phimosis is reported as 88.5% in infants 1 to 3 months of age, and as 35% in boys at 3 years of age.[5] The reported prevalence of acquired phimosis varies widely. It is likely to be secondary to inclusion of congenital phimosis in statistical analysis, but a rate of 1% of uncircumcised males is commonly reported.[6][7] Paraphimosis is seen exclusively in uncircumcised or partially circumcised males. Its true incidence is unknown. Hypospadias is estimated to occur in approximately 1 in 200 males, with most patients having distal hypospadias.[8] Congenital penile curvature >30 degrees is considered clinically significant.[9] The estimated prevalence of congenital penile curvature and/or torsion is 0.6%.[9] Congenital buried penis (megaprepuce) is uncommon. Its true incidence is unknown.

BMJ Best Practice is an evidence-based point of care tool for healthcare practitioners.

To continue reading and access all of BMJ Best Practice's pages you'll need to log in or start a free trial.

You can access through your institution if your hospital, university, trust or other institution provides access to BMJ Best Practice through either OpenAthens or Shibboleth.

Use of this content is subject to our disclaimer