How does estrogen deficiency contribute to hair changes in menopause?

How does estrogen deficiency contribute to hair changes in menopause?

• A. Estrogen deficiency can cause hair thinning and loss
• B. Estrogen deficiency causes hair growth
• C. Estrogen deficiency has no effect on hair
• D. Estrogen deficiency causes hair color change

Answer: (A)

Estrogen helps sustain the hair growth cycle, keeping follicles in the active growth phase longer. When estrogen declines in menopause, the growth phase shortens and the resting phase lengthens, so more hairs shed and the scalp hair becomes thinner. The relative rise in androgens after menopause can further promote miniaturization of follicles, contributing to a pattern of thinning. Hair color changes are not a typical consequence of estrogen deficiency, and overall hair growth does not increase when estrogen falls. So the main effect is thinning and shedding of scalp hair due to loss of estrogen.

Estrogen helps sustain the hair growth cycle, keeping follicles in the active growth phase longer. When estrogen declines in menopause, the growth phase shortens and the resting phase lengthens, so more hairs shed and the scalp hair becomes thinner. The relative rise in androgens after menopause can further promote miniaturization of follicles, contributing to a pattern of thinning. Hair color changes are not a typical consequence of estrogen deficiency, and overall hair growth does not increase when estrogen falls. So the main effect is thinning and shedding of scalp hair due to loss of estrogen.