Answer:
Most commonly, especially in girls, precocious puberty is due to the brain sending signals earlier than it should. There is no other underlying medical problem or trigger. This also can often run in families. Less often, precocious puberty stems from a more serious problem, such as a tumor or trauma.
Explanation:
On average, puberty today begins around age 10 or 11 in girls (11–12 in boys) and ends between 15 and 17, although some bodies speed through it .
