Frequent Periods in Teenagers
Teen girls don't always have regular periods, particularly when they first start menstruating. Over time, however, most girls experience regular periods that occur, on average, every 21 to 45 days.
Read more →Adolescent Health: Puberty, Behavior & Physical Changes
What causes extreme fatigue or poor circulation in teenagers? Adolescent development is marked by rapid height growth, emotional shifts influenced by music, and physical changes like frequent periods or hot flashes.