Tanner Staging

Question 1

Boys stage 1

• Height
• Hair
• Sex organ development
• Age

Answer 1

5-6cm/year
Velus hair
Prepubertal: testicular volume less than 1.5 ml; small penis of 3 cm or less
Typically younger than 9 years

Question 2

Boys stage 2

• Height
• Hair
• Sex organ development
• Age

Answer 2

5-6 cm/year
Sparse hair centrally placed, slightly pigmented
Testicular volume 1.6-6ml; skin on scrotum thins, reddens and enlarges; penis length 3 cm or less
Typically 9-11 years

Question 3

Boys stage 3

• Height
• Hair
• Sex organ development
• Age

Answer 3

7-8cm/year
Dark coarse sparse hair spread over junctions
Testicular volume between 6 and 12 ml; scrotum enlarges further; penis 6 cm
Typically 11-12.5 years

Question 4

Boys stage 4

• Height
• Hair
• Sex organ development
• Age

Answer 4

10cm/year
Adult hair, smaller amount
Testicular volume 12-20 ml; scrotum enlarges further and darkens; penis increases in length to 10 cm
Typically 12.5–14 years

Question 5

Boys stage 5

• Height
• Hair
• Sex organ development
• Age

Answer 5

No change in height after 17
Adult hair in type and amount
Testicular volume greater than 20 ml; adult scrotum and penis of 15 cm in length
Typically 14years +

Question 6

Girls stage 1

• Height
• Hair
• Sex organ development
• Age

Answer 6

5-6cm/year
Velus hair
Prepubertal: no glandular tissue, areola follows the skin contours of the chest
Typically younger than 10 years

Question 7

Girls stage 2

• Height
• Hair
• Sex organ development
• Age

Answer 7

7-8 cm/year
Sparse hair centrally placed, slightly pigmented
Breast bud forms, with small area of surrounding glandular tissue; areola begins to widen
Typically 10-11.5 years

Question 8

Girls stage 3

• Height
• Hair
• Sex organ development
• Age

Answer 8

8cm/year
Dark coarse sparse hair spread over junctions
Breast begins to become more elevated, and extends beyond the borders of the areola, which continues to widen but remains in contour with surrounding breast
Typically 11.5-13 years

Question 9

Girls stage 4

• Height
• Hair
• Sex organ development
• Age

Answer 9

7cm/year
Adult hair, smaller amount
Increased breast size; areola and papilla form a secondary mound projecting from the contour of the surrounding breast
Typically 13-15 years

Question 10

Girls stage 5

• Height
• Hair
• Sex organ development
• Age

Answer 10

No change in height after 16
Adult hair in type and amount
Breast reaches final adult size; areola returns to contour of the surrounding breast, with a projecting central papilla
Typically 15 years +