 Although amenorrhea was a required criterion for a diagnosis of anorexia in the DSM-IV, it was dropped in the DSM-5 due to its exclusive nature, as male, post-menopause women, or individuals who do not menstruate for other reasons would fail to meet this criterion.Females with bulimia may also experience amenorrhea, although the cause is not clear.Two subtypes of anorexia nervosa are specified in the DSM-5—restricting type and binge-eating/purging type.