Puberty
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Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the
Development of a male from childhood to the end of puberty
Male at 11.3 yo (prepubertal), 12.5 yo, 14.9 yo and 16.3 yo (post pubertal)
Facial hair of a male
Tanner stages of puberty in females
Tanner scale
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The Tanner scale is a scale of physical development as pre-pubescent children transition into adolescence, and then adulthood. The scale defines physical measurements of development based on external
Puberty
…of age to the onset of puberty, averaging about 2–3 cm in length and about 1.5–2 cm in width. The size of the testicles is among the parameters of the Tanner scale for male genitals, from stage I which represents a volume of less than 1.5 ml, to stage V which represents a testicular volume of greater than or equal to 20 ml. Testicular…
The five stages of pubic hair and breast growth, on a female subject