endometriosis
noun
en·do·me·tri·osis
ˌen-dō-ˌmē-trē-ˈō-səs 
: the presence and growth of tissue similar to endometrium in places other than the uterus and especially in the pelvis and abdomen that often results in severe pain and infertility
Endometriosis is not malignant, but it mimics cancer in the way it spreads and attaches itself to other organs—most commonly the ovary, bladder, and bowel.—
Consumer Reports
Consumer ReportsEndometriosis is one of the leading causes of female infertility and causes great pain and life disruption.—Paul G. Donohue
Paul G. DonohueExamples of endometriosis in a Sentence
Recent Examples on the Web
Hewitt lives with endometriosis and opened up to PEOPLE exclusively about how Davidson supports her.
—Madison E. Goldberg, People.com, 17 May 2025
Fans also thanked Bindi Irwin for being an advocate for those with endometriosis.
—Sara Vallone, Miami Herald, 13 May 2025
However, conversations may not always extend to the broader spectrum of symptoms, including severe pain or irregular periods, which can signal underlying conditions such as polycystic ovary syndrome (PCOS) or endometriosis.
—Taylor Lane, Flow Space, 8 May 2025
He’s stayed by her side throughout her treatment for aggressive endometriosis, which has now taken over her pelvis and implanted in her pubic symphysis.
—Laura Bradley, Vulture, 2 May 2025
See All Example Sentences for endometriosis
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Madison E. Goldberg, People.com, 17 May 2025
Fans also thanked Bindi Irwin for being an advocate for those with endometriosis.
—Sara Vallone, Miami Herald, 13 May 2025
However, conversations may not always extend to the broader spectrum of symptoms, including severe pain or irregular periods, which can signal underlying conditions such as polycystic ovary syndrome (PCOS) or endometriosis.
—Taylor Lane, Flow Space, 8 May 2025
He’s stayed by her side throughout her treatment for aggressive endometriosis, which has now taken over her pelvis and implanted in her pubic symphysis.
—Laura Bradley, Vulture, 2 May 2025
See All Example Sentences for endometriosis
Cite this Entry
“Endometriosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endometriosis. Accessed 29 May. 2025.
Copy CitationMedical Definition
endometriosis
noun
en·do·me·tri·osis
ˌen-dō-ˌmē-trē-ˈō-səs
plural endometrioses
-ˌsēz
: the presence and growth of tissue similar to endometrium in places other than the uterus and especially in the pelvis and abdomen and that often results in severe pain and infertility
The primary symptoms of endometriosis are pelvic pain, dysmenorrhea, dyspareunia, backache, dyschezia, dysuria, and infertility.—G. David Adamson, The Journal of the American Medical Association
G. David Adamson, The Journal of the American Medical AssociationAbout 40 percent of infertile women suffer from endometriosis.—Gigi Martino, Science News
see adenomyosis
Gigi Martino, Science NewsLove words? Need even more definitions?
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