Tanner Stages of Puberty

girls

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See discussion of the newest devices for pubic hair removal at home.

The presence of pubic hair or armpit odor prior to the other stages is the result of excess adrenal androgens, and is one of the first indicators of PCOS. PCOS is a potentially serious condition that needs the attention of a pediatric endocrinologist.

For more information about puberty, see the puberty index page.

stage breasts pubic hair annual height velocity other

I

elevation of nipple

villus hair only

5.0 to 6.0 cm

(2.0 to 2.4 in)


adrenarche

II

breast buds palpable, enlarged areola

sparse, slightly pigmented

7.0 to 8.0 cm

(2.8 to 3.2 in)


clitoral enlargement; labia pigmentation

III

mammary extends beyond edge of areola

coarser, darker, curled

8.0 cm

(3.2 in)


acne, underarm hair

IV

nipple mound stacked on areola mound

adult type, but not beyond pubic area

less than 7.0 cm

(2.8 in)


first menstruation

V

integral nipple mound

adult type, spreading onto inner thigh

final height reached at age 16

adult genitals