 Functional hypothalamic amenorrhea (FHA) is a form of anovulation, due to the suppression of hypothalamic–pituitary–ovarian axis, not related to identifiable organic causes. Like adolescents with anorexia nervosa (AN), subjects with FHA show dysfunctional attitudes, low self-esteem, depressive mood, anxiety and inability to cope with daily stress. The aim of the study is to examine similarities and differences between FHA and AN in terms of clinical profiles and psychological variables.