Menstrual psychosis (MP) is not a distinct title within the current standard psychiatric classification. Most of the literature on this disorder is based on case reports. Due to its unique clinical symptoms, MP differs from other disorders that come with psychotic symptoms. It has been reported that controlled studies utilizing large samples as well as long-term monitoring are required for the treatment of MP cases. This study presents the case of a female adolescent with MP involving affective and psychotic findings, and it attempts to raise awareness regarding this rare disorder.