 The investigators wish to highlight, in a Case-Control design, if there is an increased concentration of BFRs in omental adipose tissue of cases women with severe endometriosis with surgical indication versus bioaccumulation recorded in a control cohort women recruited in obstetrics and gynecology or visceral surgery showing no sign of endometriosis . Pairing will be operate on Age - 5 years compared to the case , BMI BMI 5 Classes described by the HAS and previous breastfeeding experience yes no , opposite the release expected bioaccumulate contaminants in breast adipose tissue , when the lactation . 