Menarche

(pronounced: meh-nar-kee)

Definition:

Menarche is the medical term that refers to the onset of the first menstrual period in females at the onset of puberty.

Key Points:

• Menarche marks the beginning of a female’s reproductive years.
• It typically occurs between the ages of 9 and 15, with an average age of 12 years.
• Menarche is a result of hormonal changes in the body, primarily the increase in estrogen levels.
• The first few menstrual cycles after menarche may be irregular and without ovulation, but they usually become more regular over time.
• Menarche is considered a milestone in a girl’s life and is often accompanied by emotional and physical changes.