Benefit of Ethanol Sclerotherapy of Endometriomas Before Ovarian Stimulation on Pregnancy Rates in IVF/ICSI

Inclusion Criteria: * Infertile women aged 18 to 43, * Presenting one or 2 endometriotic cysts of 30 mm to 80 mm long axis, confirmed by ultrasound and/or pelvic MRI and without signs of atypia, * With indication of IVF/ICSI, first IVF/ICSI after the discovery of endometriosis cyst(s), * Having given their consent. Exclusion Criteria: * A history of ovarian cystectomy, * A non-homogeneous cyst that cannot be punctured (risk of incomplete aspiration), * Complex adnexal image that cannot exclude an associated hematosalpinx (communicating hematosalpinx, tissue component), * A recent tubo-ovarian infection, * An active, untreated vaginal infection, * Anticoagulant treatment at a therapeutic dose, * All adult patients protected by law (under guardianship or curatorship), * Problems understanding the French language, * Participation in intervention research, * All patients not affiliated to the social security system.