HORMONAL CLASSIFICATION OF HAIR
A. The same for both sexes and not dependent on steroid hormones
Eyebrows
Eyelashes
B. Similar in both sexes but not necessarily identical and steroid hormones-dependent:
Armpits
Pubic triangle
Forearms and legs
C. Different according to sex and steroid hormones-dependent (secondary sexual characteristics):
Moustache area
Chin, beard and neck
Thorax
Upper abdomen
Upper portion of the pubic triangle
Arms
Thighs
Shoulders and back
Lumbar and sacral area and buttocks
D. The same in both sexes but steroid hormones-dependent
Hair