female hair loss - 3 major patterns
Female Pattern Hair Loss (FPHL) is a form of androgenetic
alopecia with a multi-factorial, genetically determined
trait. Both androgen-dependent and androgen-independent
mechanisms plus a biologically normal aging process is
involved. Female and male members of the family may both be
affected.
Majority has normal type II 5-α reductase levels and
normal DHT level in scalp skin. Elevated androgen level
were
seen in 16% of women with hair loss alone, and 79% if
associated with hirsutism or menstrual disturbance. Though
not as common, men can have Female Pattern Hair Loss when
thinning extends from the centerline sideway.
3 major patterns in female Pattern Hair Loss
Type 1. M-Shaped or high forehead - Norwood's
Classification
Type 2. Thinning at the centerline, extending sidway -
Ludqig's or Centrifugal Classification
Type 3. Christmas Tree Pattern - Olsen's Classification
Type 1 : Norwood's Classification
• Born with a high forehead or M-shaped
hairline
• Thinning of the hairline and the crown
similar to men with aging
• Classification is by the
Norwood System
similar to men
Type 2: Ludwig's Classification
• Central and possibly lateral thinning
with sparing of the hairline
• Classification is by the Ludwig System
Type 3: Olsen's Classification
• Accentuation of frontal Loss breaching
the frontal hairline
• The loss is widest in front tapering
towards the crown
• Classification is by the Olsen's System
