Puberty- Sexual Education For Boys And Girls Subtitles English May 2026

The first sign of puberty in boys is usually the enlargement of the testicles.

The first visible sign of puberty in most girls is breast development, often starting as small, tender "breast buds" under the nipple. The first sign of puberty in boys is

Puberty is triggered by hormones from the brain that signal the reproductive organs—the ovaries in females and the testes in males—to begin producing sex hormones. : Growth of pubic and underarm hair, a

: Growth of pubic and underarm hair, a clear or white vaginal discharge, and a rapid growth spurt. Physical Changes in Boys National Institutes of Health (

: Usually begins about two years after breast development starts. It is a normal monthly process where the uterine lining is shed if an egg is not fertilized.

National Institutes of Health (.gov)https://www.ncbi.nlm.nih.gov Physiology, Puberty - StatPearls - NCBI Bookshelf

: Puberty typically starts between the ages of 8 and 13 for girls and 9 and 14 for boys, though the exact timing varies for everyone. Physical Changes in Girls