: Growth of pubic and underarm hair, a clear or white vaginal discharge, and a rapid growth spurt. Physical Changes in Boys
The first sign of puberty in boys is usually the enlargement of the testicles. : Growth of pubic and underarm hair, a
National Institutes of Health (.gov)https://www.ncbi.nlm.nih.gov Physiology, Puberty - StatPearls - NCBI Bookshelf a clear or white vaginal discharge
The first visible sign of puberty in most girls is breast development, often starting as small, tender "breast buds" under the nipple. often starting as small
: 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.