Use of Metabolomics for the Identification of Endometrial Biomarkers for IRPL and RIF After in Vitro Fertilization

Inclusion Criteria: * Age between 18 (included) and 40 years (excluded). * Patients who agreed to participate and signed the consent form * Patients undergoing ART for male factor infertility: male partner with severe oligoasthenospermia or azoospermia. * Patients without any prior history of infertility or risk factors for infertility other than the male factor. * Patients with a normal basic infertility workup prior to ART (Day 3 serum FSH, LH, Estradiol and AMH; Antral follicle count; hysterosonography or hysterosalpingography) Exclusion Criteria: * Non-French speaking patients. * Major patients that are wards of the nation. * Patients deprived of their liberty on criminal charges or for civil reasons. * Patients under psychiatric care. * Patients under legal protection. * Patients unable to sign consent forms. * Patients not covered by social security (which covers all treatments administered). * Patients currently participating in other interventional research projects.