Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Menarche
Medically reviewed by Min Clinic Staff | Updated: January 2026
Menarche: The time in a girl's life when menstruation first begins. During the menarche period, menstruation may be irregular and unpredictable. Also known as female puberty.