Teen Center
Search for answers to any questions or concerns that you may have about your health or body.
Teen Center
Search for answers to any questions or concerns that you may have about your health or body.
Menstrual Periods
Menstrual PeriodsMenstrual Periods First Menstrual Cycle (Period) Girls will experience their first menstrual cycle, or period, about 2 1/2 years after breast development begins. Breast development begins with small lumps, called breast buds, under the nipples. Also,...