Template:Tanner stages: Difference between revisions

From Embryology
mNo edit summary
mNo edit summary
Line 12: Line 12:
| no pubic hair at all (prepuberta] state) (typically age 10 and younger)
| no pubic hair at all (prepuberta] state) (typically age 10 and younger)
|-
|-
| II
| <center>'''II'''</center>
| testicular volume 1.6 to 6 ml<br>skin on scrotum thins, reddens and enlarges; penis length unchanged (typically age 9–11)
| testicular volume 1.6 to 6 ml<br>skin on scrotum thins, reddens and enlarges; penis length unchanged (typically age 9–11)
| breast bud forms, with small area of surrounding glandular tissue; areola begins to widen (10–11.5)
| breast bud forms, with small area of surrounding glandular tissue; areola begins to widen (10–11.5)
| small amount of long, downy hair with slight pigmentation at the base of the penis and scrotum (males) or on the labia majora (females) (10–11.5)
| small amount of long, downy hair with slight pigmentation at the base of the penis and scrotum (males) or on the labia majora (females) (10–11.5)
|-
|-
| III
| <center>'''III'''</center>
|  testicular volume 6 to 12 ml<br>scrotum enlarges further; penis begins to lengthen to about 6 cm (11–12.5)
|  testicular volume 6 to 12 ml<br>scrotum enlarges further; penis begins to lengthen to about 6 cm (11–12.5)
| 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 (11.5–13)
| 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 (11.5–13)
| hair becomes more coarse and curly, and begins to extend laterally (11.5–13)
| hair becomes more coarse and curly, and begins to extend laterally (11.5–13)
|-
|-
| IV
| <center>'''IV'''</center>
| testicular volume 12 to 20 ml<br>scrotum enlarges further and darkens; penis increases in length to 10 cm and circumference (12.5–14)
| testicular volume 12 to 20 ml<br>scrotum enlarges further and darkens; penis increases in length to 10 cm and circumference (12.5–14)
| increased breast size and elevation; areola and papilla form a secondary mound projecting from the contour of the surrounding breast (13–15)
| increased breast size and elevation; areola and papilla form a secondary mound projecting from the contour of the surrounding breast (13–15)
| adult–like hair quality, extending across pubis but sparing medial thighs (13–15)
| adult–like hair quality, extending across pubis but sparing medial thighs (13–15)
|-
|-
| V
| <center>'''V'''</center>
| testicular volume > 20 ml<br> adult scrotum and penis of 15 cm in length (14+)
| testicular volume > 20 ml<br> adult scrotum and penis of 15 cm in length (14+)
| breast reaches final adult size; areola returns to contour of the surrounding breast, with a projecting central papilla. (15+)
| breast reaches final adult size; areola returns to contour of the surrounding breast, with a projecting central papilla. (15+)
|  hair extends to medial surface of the thighs (15+)
|  hair extends to medial surface of the thighs (15+)
|}
|}

Revision as of 16:21, 2 June 2015

Tanner Stages
Tanner Stage Genitals (male) Breasts (female) Pubic hair (male and female)
I
prepubertal (testicular volume < 1.5 ml
small penis of 3 cm or less)
(typically age 9 and younger)
no glandular tissue: areola follows the skin contours of the chest (prepubertal) (typically age 10 and younger) no pubic hair at all (prepuberta] state) (typically age 10 and younger)
II
testicular volume 1.6 to 6 ml
skin on scrotum thins, reddens and enlarges; penis length unchanged (typically age 9–11)
breast bud forms, with small area of surrounding glandular tissue; areola begins to widen (10–11.5) small amount of long, downy hair with slight pigmentation at the base of the penis and scrotum (males) or on the labia majora (females) (10–11.5)
III
testicular volume 6 to 12 ml
scrotum enlarges further; penis begins to lengthen to about 6 cm (11–12.5)
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 (11.5–13) hair becomes more coarse and curly, and begins to extend laterally (11.5–13)
IV
testicular volume 12 to 20 ml
scrotum enlarges further and darkens; penis increases in length to 10 cm and circumference (12.5–14)
increased breast size and elevation; areola and papilla form a secondary mound projecting from the contour of the surrounding breast (13–15) adult–like hair quality, extending across pubis but sparing medial thighs (13–15)
V
testicular volume > 20 ml
adult scrotum and penis of 15 cm in length (14+)
breast reaches final adult size; areola returns to contour of the surrounding breast, with a projecting central papilla. (15+) hair extends to medial surface of the thighs (15+)