Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
Surface Membrane Barriers01:18

Surface Membrane Barriers

The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
Microbiota of the Urogenital Tract01:28

Microbiota of the Urogenital Tract

The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Providing an Evidence Base for Tissue Sampling and Culture Interpretation in Suspected Fracture-Related Infection.

The Journal of bone and joint surgery. American volume·2021
Same author

Whole exome sequencing to uncover genetic variants underlying congenital cystic adenomatoid malformations.

Hong Kong medical journal = Xianggang yi xue za zhi·2019
Same author

The value of quantitative histology in the diagnosis of fracture-related infection.

The bone & joint journal·2018
Same author

Functional outcome of debridement, antibiotics and implant retention in periprosthetic joint infection involving the hip: a case-control study.

The bone & joint journal·2017
Same author

Single-stage treatment of chronic osteomyelitis with a new absorbable, gentamicin-loaded, calcium sulphate/hydroxyapatite biocomposite: a prospective series of 100 cases.

The bone & joint journal·2016
Same author

Pneumatosis intestinalis presenting as pneumoperitoneum in a teenage girl with pyloric stenosis.

BMJ case reports·2015

Related Experiment Video

Updated: Jul 17, 2026

Surgical Management of Meatal Stenosis with Meatoplasty
04:53

Surgical Management of Meatal Stenosis with Meatoplasty

Published on: November 30, 2010

Does circumcision alter the periurethral bacterial flora?

S S Wijesinha1, B L Atkins, N E Dudley

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

Pediatric Surgery International
|May 1, 1998
PubMed
Summary

Circumcision in boys significantly reduced harmful bacteria in the periurethral area. This study suggests male circumcision may offer protection against urinary tract infections (UTIs).

More Related Videos

Isolation of Single Intracellular Bacterial Communities Generated from a Murine Model of Urinary Tract Infection for Downstream Single-cell Analysis
07:34

Isolation of Single Intracellular Bacterial Communities Generated from a Murine Model of Urinary Tract Infection for Downstream Single-cell Analysis

Published on: April 16, 2019

Microscopic Replantation of Penile Glans Amputation Due to Circumcision
07:28

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Published on: June 3, 2022

Related Experiment Videos

Last Updated: Jul 17, 2026

Surgical Management of Meatal Stenosis with Meatoplasty
04:53

Surgical Management of Meatal Stenosis with Meatoplasty

Published on: November 30, 2010

Isolation of Single Intracellular Bacterial Communities Generated from a Murine Model of Urinary Tract Infection for Downstream Single-cell Analysis
07:34

Isolation of Single Intracellular Bacterial Communities Generated from a Murine Model of Urinary Tract Infection for Downstream Single-cell Analysis

Published on: April 16, 2019

Microscopic Replantation of Penile Glans Amputation Due to Circumcision
07:28

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Published on: June 3, 2022

Area of Science:

  • Urology
  • Microbiology
  • Pediatric Surgery

Background:

  • The periurethral area can harbor uropathogenic organisms.
  • Ascending urinary tract infections (UTIs) are a concern, particularly in pediatric patients.
  • Circumcision is a surgical procedure with potential implications for microbial colonization.

Purpose of the Study:

  • To investigate the impact of circumcision on periurethral bacterial flora in boys.
  • To assess whether circumcision alters the presence of uropathogens in the periurethral region.
  • To explore the potential protective effect of circumcision against UTIs.

Main Methods:

  • Prospective study involving 25 boys undergoing circumcision for medical reasons.
  • Periurethral bacterial flora specimens collected before and 3 weeks after surgery.
  • Each boy served as his own control to minimize confounding variables.

Main Results:

  • Before circumcision, 52% of boys harbored uropathogenic organisms (e.g., Escherichia coli, Enterococcus spp.).
  • After circumcision, no uropathogens were detected in any of the boys.
  • The periurethral region was colonized by normal skin commensals post-surgery.

Conclusions:

  • Circumcision appears to eliminate uropathogens from the periurethral area.
  • The procedure may convert a reservoir for infection into a surface colonized by protective skin flora.
  • Findings provide circumstantial evidence that circumcision may confer protection against UTIs in select male patients.