6y8m
Breast:bud (develop 3m)
Pubic hair: p1
Bone age = 6y8m
Sono: 2.63*1.00

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8y8m
Breast:b2 (develop 1y4m)
Pubic hair: p1
Bone age = 8y10m
Sono: 3.79*1.59cm

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10y3m
Breast:b2-3
Pubic hair: p1
Bone age = 12
Sono: 4.45*2cm, endo+

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10y11m
Breast:b2
Pubic hair: p1, one hair
Bone age = 12
Sono: 4.73*2.18cm

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10y4m
Breast:b2 (develop at least 1y4m)
Pubic hair: p1
Bone age = 12
Sono: 4.92*2.23 cm

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14y9m
Breast:b2 (develop 1 y)
Pubic hair: p1
Bone age = 13
Sono: 4.65*1.56cm,Endo:0.27