Although obviously important, pubertal changes start at least one to two years prior to these signs in both boys and girls. Thin, straight and sparse growth of pubic hair. Darker and longer hair growth on the arms and legs. Oilier skin and hair. Continued breast growth.
Growth slows and stops.
Scrotum gets more wrinkly, bigger and hangs lower. Skin on penis gets darker. Initial pubic hair growth. Penis gets longer. Sweating more under the arms, on palms and feet, groin and trunk.