--- title: Mesentery: Scientists Discover New Organ in Human Body description: Scientists have discovered a new human organ that exists in the digestive system canonical: https://time.com/4621074/mesentery-organ-human-body/ author: Mahita Gajanan article:opinion: false article:content_tier: free article:published_time: 2017-01-03T21:23:04.000Z article:modified_time: 2026-02-23T02:31:43.292Z article:section: Health og:title: Scientists Discover a New Organ in the Human Body og:description: The mesentery was previously thought to consist of fragmented structures og:url: https://time.com/4621074/mesentery-organ-human-body/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt22c1acc8320e5a69/6988b450fb4eac58438904d0/new-orgran-digestive-system.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 2560 og:image:height: 1440 og:image:alt: Intestines Sketch with Guts Bacteria og:type: article twitter:card: summary_large_image twitter:title: Scientists Discover a New Organ in the Human Body twitter:description: The mesentery was previously thought to consist of fragmented structures twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt22c1acc8320e5a69/6988b450fb4eac58438904d0/new-orgran-digestive-system.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Scientists Discover a New Organ in the Human Body > Sponsored content. 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Jan 3, 2017 9:23 PM UTC Scientists recently [discovered what they are calling a new human organ](http://www.thelancet.com/journals/langas/article/PIIS2468-1253%2816%2930026-7/fulltext) that exists in the digestive system. Named the mesentery, the organ was previously thought to consist of fragmented and disparate structures. Researchers found, however, that it is one continuous organ and outlined evidence to classify it as such in a review published in [_The Lancet Gastroenterology & Hepatology_](http://www.thelancet.com/journals/langas/article/PIIS2468-1253%2816%2930026-7/abstract). “In the paper, which has been peer reviewed and assessed, we are now saying we have an organ in the body which hasn’t been acknowledged as such to date,” J. Calvin Coffey, a researcher from the University Hospital Limerick in Ireland, who first made the discovery, [said in a release](https://www.ul.ie/research/blog/irish-surgeon-identifies-emerging-area-medical-science). The [mesentery](http://www.sciencealert.com/it-s-official-a-brand-new-human-organ-has-been-classified) is a double fold of the peritoneum, which is the lining of the abdominal cavity. It connects the intestine to the abdomen. While the mesentery’s specific function is still unknown, studying it as an organ could lead to new discoveries about its impact on abdominal diseases. “When we approach it like every other organ … we can categorize abdominal disease in terms of this organ,” Coffey said. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4621074/mesentery-organ-human-body/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4621074/mesentery-organ-human-body/"},"headline":"Scientists Discover a New Organ in the Human Body","datePublished":"2017-01-03T21:23:04.000Z","dateModified":"2026-02-23T02:31:43.292Z","description":"The mesentery was previously thought to consist of fragmented structures","url":"https://time.com/4621074/mesentery-organ-human-body/","keywords":["Research","onetime"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt22c1acc8320e5a69/6988b450fb4eac58438904d0/new-orgran-digestive-system.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Mahita Gajanan","jobTitle":"Gajanan is an editor at TIME.","url":"https://time.com/author/mahita-gajanan/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt22c1acc8320e5a69/6988b450fb4eac58438904d0/new-orgran-digestive-system.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Intestines Sketch with Guts Bacteria","caption":"Intestines Sketch with Guts Bacteria","creditText":"Getty Images","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":"/tag/research/","name":"Research"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4621074/mesentery-organ-human-body/","name":"Scientists Discover a New Organ in the Human Body"}}]}] ```