Puberty in girls usually begin earlier than in boys; sometimes, it may start as early as nine, but it usually begins between ages nine and eleven. Most often, a breast bud (bump under the nipple that can be a little tender) shows up first. It can appear in one side before the other; do not panic--the other side will eventually develop. Sometimes, the first sign of puberty is dark, coarse hair in the pubic area on a girl's labia as well as in her armpits. A girl grows a lot before her first period begins, and she will continue Continue reading...
