In what age range does menarche typically occur?

In what age range does menarche typically occur?

• A. 9-15 years
• B. 11-13 years
• C. 12-14 years
• D. 8-10 years

Answer: (A)

Menarche, the first menstrual period, marks puberty reaching reproductive maturity. The timing varies, but the typical window is from about 9 to 15 years. This broad range best reflects normal variability in onset across individuals, with the average centered around 12 to 13 years. Factors like nutrition, body fat, health, and genetics can shift the exact age within that range. The other options are narrower or miss the younger and older possible ages, so they don’t capture the full normal span.

Menarche, the first menstrual period, marks puberty reaching reproductive maturity. The timing varies, but the typical window is from about 9 to 15 years. This broad range best reflects normal variability in onset across individuals, with the average centered around 12 to 13 years. Factors like nutrition, body fat, health, and genetics can shift the exact age within that range. The other options are narrower or miss the younger and older possible ages, so they don’t capture the full normal span.