--- title: Study: Uncircumcised Boys Have a Higher Risk of UTI description: A study published in the Canadian Medical Association Journal finds that uncircumcised boys have a higher risk of urinary tract infection (UTI) than circumcised boys,... canonical: https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/ author: TIME Staff article:opinion: false article:content_tier: free article:published_time: 2012-07-09T20:13:36.000Z article:modified_time: 2026-03-16T10:22:50.876Z article:section: Health og:title: Study: Uncircumcised Boys Have a Higher Risk of UTI og:description: A study published in the Canadian Medical Association Journal finds that uncircumcised boys have a higher risk of urinary tract infection (UTI) than circumcised boys,... og:url: https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt157dcab8c8cd2aa8/698a9369cabb1ddd9ee5a4ca/143174279.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 4872 og:image:height: 2741 og:image:alt: 143174279 og:type: article twitter:card: summary_large_image twitter:title: Study: Uncircumcised Boys Have a Higher Risk of UTI twitter:description: A study published in the Canadian Medical Association Journal finds that uncircumcised boys have a higher risk of urinary tract infection (UTI) than circumcised boys,... twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt157dcab8c8cd2aa8/698a9369cabb1ddd9ee5a4ca/143174279.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  * [Health](/section/health/) # Study: Uncircumcised Boys Have a Higher Risk of UTI > Sponsored content. 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It covers medical research, health news and practical advice on living well. #### Where can I get reliable health news by email? Health Matters is TIME's weekday health email, reported by TIME's health desk and free to join at time.com/newsletters. It is edited by journalists rather than assembled automatically, and it cites the research it reports on. #### Is Health Matters free? Yes. Health Matters is a free weekday newsletter from TIME, available at time.com/newsletters. #### Who reads TIME's Health Matters newsletter? Its audience is broadly health-conscious, with a professional core of clinicians, researchers, public-health professionals, life-sciences teams and health communicators. ### Sources * TIME Newsletters: [time.com/newsletters](/c/time-nl-health-2026q3/newsletters?i=adaf2653-341c-4374-879a-351d76640d1c&cr=time-nl-health-2026q3-v1) by [TIME Staff](https://time.com/author/time-staff/) Jul 9, 2012 8:13 PM UTC  Doctor And Patient Doctor And Patient Getty Images—(c) Daniel Bendjy by [TIME Staff](https://time.com/author/time-staff/) Jul 9, 2012 8:13 PM UTC A study published in the _Canadian Medical Association Journal_ finds that uncircumcised boys have a higher risk of urinary tract infection (UTI) than circumcised boys, a condition that could lead to kidney damage and scarring if left untreated.more The risk of infection was higher in uncircumcised boys regardless of how much of their urethral opening was visible. (**MORE:** [Circumcision: The Surgery that May Lower Prostate-Cancer Risk](http://healthland.time.com/2012/03/12/circumcision-the-surgery-that-can-lower-prostate-cancer-risk/)) In order to determine the risks of infection for circumcised and uncircumcised boys, researchers at McGill University in Montreal looked at 393 boys who visited the emergency department of Montreal Children’s Hospital with symptoms of UTI. Of these boys, 309 were uncircumcised — the urethral opening was visible in 40 boys and partially visible or not visible in 269 — and 84 boys were circumcised. About 20% of the boys had a UTI, and both groups of uncircumcised boys were at increased risk. Overall, researchers calculated that the risk of infection was 88% lower in the circumcised boys. (**MORE:** [How 11 New York City Babies Contracted Herpes Through Circumcision](http://healthland.time.com/2012/06/07/how-11-new-york-city-babies-contracted-herpes-through-circumcision/)) Previous studies have suggested that uncircumcised boys have a higher risk of urinary tract infection because bacteria may build up under the foreskin and enter the urinary tract. The team wanted to see whether that higher risk held for all uncircumcised boys, even those whose urethral openings (where urine comes out) were visible. “We thought that incomplete foreskin retractability with a poorly visible urethral \[opening\] may be associated with increased risk of urinary tract infection,” wrote the [study](http://www.cmaj.ca/content/early/2012/07/09/cmaj.111372) authors, led by Dr. Sasha Dubrovsky. “However, we found no difference in risk with degree of visibility of the urethral opening.” The biggest concern over UTIs in children is that they can cause damage and scarring to the kidneys, [according to WebMD](http://children.webmd.com/tc/urinary-tract-infections-in-children-what-happens); over time, repeated scarring can cause long-term damage, including problems with kidney function and even kidney failure — complications for which infants and young children may be at greater risk. That’s why detecting and treating UTIs in babies and children is crucial; because symptoms in such young patients may be vague, however, that’s not always easy. “\[W\]e suggest that clinicians should consider circumcision status alone, not the degree of urethral visibility, when stratifying risk for boys presenting to the emergency department with symptoms or signs suggesting a urinary tract infection,” conclude the authors. **MORE:** [Battle of the Bris: A Move to Outlaw Circumcision in San Francisco](http://healthland.time.com/2010/11/22/battle-of-the-bris-a-move-to-outlaw-circumcision-in-san-francisco/) ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/"},"headline":"Study: Uncircumcised Boys Have a Higher Risk of UTI","datePublished":"2012-07-09T20:13:36.000Z","dateModified":"2026-03-16T10:22:50.876Z","description":"A study published in the Canadian Medical Association Journal finds that uncircumcised boys have a higher risk of urinary tract infection (UTI) than circumcised boys,...","url":"https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/","keywords":[],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt157dcab8c8cd2aa8/698a9369cabb1ddd9ee5a4ca/143174279.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"TIME Staff","url":"https://time.com/author/time-staff/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt157dcab8c8cd2aa8/698a9369cabb1ddd9ee5a4ca/143174279.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"143174279","caption":"143174279","creditText":"Getty Images—(c) Daniel Bendjy","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/archive/7138109/study-uncircumcised-boys-have-a-higher-risk-of-uti/","name":"Study: Uncircumcised Boys Have a Higher Risk of UTI"}}]}] ```