What is menarche?

What is menarche?

• A. Onset of menopause
• B. First menstrual period, occurs at puberty
• C. First ovulation
• D. The first pregnancy

Answer: (B)

Menarche is the first menstrual period, the moment puberty begins and the body becomes capable of reproductive cycles. It arises as estrogen rises and the uterine lining begins to thicken and shed in cycles, even though early cycles are often not ovulatory. That makes the description “first menstrual period, occurs at puberty” the best definition. The onset of menopause is when menstrual cycles end later in life, not the start. The first ovulation can occur after menarche and does not itself define menarche, since a period can occur before ovulation is regular. The first pregnancy is unrelated to the name and timing of menarche.

Menarche is the first menstrual period, the moment puberty begins and the body becomes capable of reproductive cycles. It arises as estrogen rises and the uterine lining begins to thicken and shed in cycles, even though early cycles are often not ovulatory. That makes the description “first menstrual period, occurs at puberty” the best definition. The onset of menopause is when menstrual cycles end later in life, not the start. The first ovulation can occur after menarche and does not itself define menarche, since a period can occur before ovulation is regular. The first pregnancy is unrelated to the name and timing of menarche.