A Study to Measure Relationship Between Antimüllerian Hormone and Initial Dose of Menopur®

Inclusion Criteria: * Women aged between \[18-42\] years. * Both ovaries present. * Regular menstrual cycles presumed to be ovulatory. * Primary or secondary infertility of any origin for more than 12 months. * Patient with at least one result of antimüllerian hormone (AMH) measured by a fully automated assay available before inclusion, and performed in the past 12 months before inclusion. * Candidates eligible to a first IVF/ICSI cycle and for whom Menopur® HP-hMG 600 IU/mL has been prescribed. * Having received oral and written information on the study, without any objections for the use of his/her anonymized data, and having signed a written Informed Consent Form. Exclusion Criteria: * Major uterine or ovarian morphological abnormalities or past ovarian surgery. * Endometriosis stage III/IV. * Polycystic ovarian syndrome. * Major endocrine or metabolic abnormalities without treatment. * Patient included in an interventional study assessing treatment for infertility.