Does puberty end at 17?

No Set Date: There is no set age in which puberty ends. Girls tend to start and finish with puberty sooner than boys, but each person is unique and can start/end puberty at different times. In boys, the first signs of puberty are enlargement of the scrotum and testes, followed by lengthening of the penis. Next, pubic hair appears followed by hair growth off the face and underarms.