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Body Size
A boy's body size will increase, with the feet, arms, legs, and hands sometimes growinf faster than the rest of his body. This may cause the boy to experience a time of feeling clumsy. Body proportions change during this growth spurt. -
Voice Changes
Voice changes may occr as the voice gets deeer and sometimes the voice may "crack" during this time. -
More Hair
Not only will hair continue to grow in the genital area, but males will also experience hair growth on their face, under their arms, and on their legs. -
Pubic Hair
A few light-colored downy hairs materialize at the base of the penis. -
Enlargement
A near doubling in the sixe of the testicles and the scrotal sac announces the advent of puberty. The skin of the scrotum darkens, enlarges, thins, hangs down from the body, and becomes dotted with tiny bumps. -
Penis Growth
The penis will start to grow in length and then in width. -
Fertility
Boys are considered capable of procreation upon their first ejaculation. The testicles now produce sperm in addition to testosterone, while the prostate, the two seminal vesicles and another pair of glands secrete fluids that combine with the sperm to form semen.
