Editing Ectopic pregnancy (section)

=== Endometriosis ===
{{Main|Endometriosis}}

Endometriosis is a disease in which cells similar to those of the [[endometrium]], the tissue covering the inside of the uterus, grow outside the uterus.  An embryo attaching to such lesions leads to an ectopic pregnancy. The results of a 30-year study of reproductive and pregnancy outcomes, involving 14,000+ women of child-bearing age, were presented at the 2015 [[European Society of Human Reproduction and Embryology]] (ESHRE) annual congress.<ref name="ESHRE2015">{{Cite web |last=Saraswat |first=Lucky |date=2015 |title=ESHRE2015: Endometriosis associated with a greater risk of complications in pregnancy |url=https://endometriosis.org/news/congress-highlights/eshre2015-endometriosis-associated-with-a-greater-risk-of-complications-in-pregnancy/#:~:text=After%20adjustments%20for%20age%20and%20previous%20pregnancy%2C%20results,three%20times%20higher%20for%20ectopic%20pregnancy%20%28OR%202.7%29 |access-date=14 February 2024 |website=endometriosis.org |publisher=European Society of Human Reproduction and Embryology}}</ref> 39% of the study group had surgically confirmed endometriosis. Compared to their peers, the endometriosis subgroup had a 76% higher risk for miscarriage and a 270% higher risk for ectopic pregnancy. The higher endometriosis risks were attributed to increased pelvic inflammation and structural and functional changes in the uterine lining.{{cn|date=September 2024}}