Exposure to Persistent Organic Pollutants and Severity of Endometriosis in the ComPaRe-Endometriosis Cohort

Inclusion Criteria: * ComPaRe participants ⩾ 18 years old. All ComPaRe participants are at least 18 years of age, so our research participants will all be adults. * Having declared in ComPaRe that they had endometriosis * Living in the Ile-de-France region (departments 75, 77, 78, 91, 92, 93, 94 or 95); * Have given electronic consent stating: "By checking this box, I agree to be solicited for research outside ComPaRe"; This criterion is collected at the time of ComPaRe registration, when consent is collected. Participants can withdraw this consent at any time on their secure personal online account on the ComPaRe platform. * Aged ≤ 45 years to avoid including premenopausal or menopausal women; * In possession of MRI images used to diagnose their endometriosis (CD-ROM) that are no more than 5 years old; * Enrolled in or benefiting from a social security scheme. Exclusion Criteria: * \- People with contraindications to blood sampling will not be included in this research: * Known severe anemia * Hemophilia/coagulation disorders/anticoagulant use * People with HIV, HBV or HCV will not be included in this study due to the risk of BSE (Blood Exposure Accident). * Based on factors that may disrupt lipid dynamics and lipid pollutants, the following individuals will not be included: * Pregnant and breast-feeding women * People suffering from any of the following diseases: * Cancer * Morbid obesity (BMI\>40) * Non-alcoholic steatohepatitis (NASH) * Persons under court protection/guardianship/guardianship will not be able to participate in this research.