Background: The annual increase in the prevalence of obesity around the world highlights the importance of comorbidities. Along with hormonal changes induced by increased body mass index (BMI), age at menopause might also affect female's health profoundly. Thus, the present study aimed at studying the association between obesity and overweightness on age of menopause in females. Methods: In this study, patients, who were referred to the obesity clinic of Rasoule-Akram hospital, during years 2011 and 2013 were recruited and the required information were extracted from the center's database. Inclusion criteria consisted of high BMI, no history of hysterectomy, genital tract cancer, no history of radiation to the abdomen or pelvis, and no primary amenorrhea. For