Which event typically occurs first in puberty development?

Which event typically occurs first in puberty development?

• A. Spermarche.
• B. Menarche.
• C. Epiphyseal closure.
• D. Adrenarche.

Answer: (D)

Puberty starts with adrenal maturation, known as adrenarche. At this stage the adrenal glands begin producing androgens like DHEA, which drive early secondary sexual changes such as pubic and underarm hair, body odor, and skin changes. These changes typically appear before the gonads truly awaken (gonadarche), which is when the gonadal hormones drive breast development in girls and testicular growth in boys, followed by other signs like the growth spurt, and later events such as spermarche and menarche. Epiphyseal closure is a later development signaling the end of growth. So, the earliest event in puberty is adrenarche.

Puberty starts with adrenal maturation, known as adrenarche. At this stage the adrenal glands begin producing androgens like DHEA, which drive early secondary sexual changes such as pubic and underarm hair, body odor, and skin changes. These changes typically appear before the gonads truly awaken (gonadarche), which is when the gonadal hormones drive breast development in girls and testicular growth in boys, followed by other signs like the growth spurt, and later events such as spermarche and menarche. Epiphyseal closure is a later development signaling the end of growth. So, the earliest event in puberty is adrenarche.