Abstract STUDY QUESTION Are serum levels of anti-Müllerian hormone (AMH) normal in patients with functional hypothalamic anovulation (FHA)? SUMMARY ANSWER Our study confirms that the general FHA population, AMH are not decreased, but if polycystic ovarian morphology (PCOM) excluded, become significantly lower, as other situations gonadotropic insufficiency. WHAT IS KNOWN ALREADY In most low LH ...