Hair
loss in women can be transient (synonyms
= temporary / telogen effluvium / non-genetic)
or permanent (genetic / androgenetic
alopecia). To determine which category you
fall under, please read this web page to learn
more. Before learning about female hair
loss, one must understand the human hair growth
cycle.
The
average person loses 50-100 hairs a day. Hair
loss only occurs when the number of shedding
hairs exceeds the number of new hairs coming in.
Normal hair growth is a three stage cycle:
Hair
Growth Cycle
1)
Anagen - Growth Phase Approximately 85% of all
hairs are in the growing phase at any one time.
The Anagen phase or growth phase can vary from
two to six years. Hair grows approximately 10 cm
per year and any individual hair is unlikely to
grow more than one meter long.
2)
Catagen - Transitional phase At the end of the
Anagen phase the hairs enters into a Catagen
phase which lasts about one or two weeks, during
the Catagen phase the hair follicle shrinks to
about 1/6 of the normal length. The lower part is
destroyed and the dermal papilla breaks away to
rest below.
3)
Telogen - Resting Phase The resting phase follows
the catagen phase and normally lasts about 5-6
weeks. During this time the hair does not grow
but stays attached to the follicle while the
dermal papilla stays in a resting phase below.
Approximately
10-15 percent of all hairs are in this phase at
an one time. At the end of the Telogen phase the
hair follicle re-enters the Anagen phase. The
dermal papilla and the base of the follicle join
together again and a new hair begins to form. If
the old hair has not already been shed the new
hair pushes the old one out and the growth cycle
starts all over again. Each hair passes through
the phases independent of the neighboring hairs.
Two
Types of Hair Loss
For
men, 95-percent of male pattern hair loss can be
attributed to genetic hair loss or androgenetic
alopecia. In women, the cause and proper
diagnosis is not as simple to determine and a
physician should be consulted. Thinning hair or
hair loss in females can fall into two
categories: Genetic and Non-Genetic. Genetic hair
loss tends to be permanent while non-genetic is
more often temporary. Both types of hair loss are
treatable.
Genetic
Hair Loss (androgenetic alopecia)
Nearly
one-third of all women will experience some form
of androgenetic alopecia (female pattern hair
loss). Alopecia in women is attribruted to three
factors: aging, hormones, and genetics.
Most
often, alopecia occurs (but is not limited to) in
women following menopause as hormone levels in
the body change. "Changes in the levels
of the androgens (a male hormone) can affect hair
production. For example, after the hormonal
changes of menopause, many women find that the
hair on the head is thinned, while facial hair is
coarser." Source. Genetics
can also be a determining factor. Women with
older female family members who endured thinning
of the hair are more likely themselves to be
subjected to androgenetic alopecia.
Women
with alopecia do not lose their hair in the same
fashion men do. Usually, the frontal hair line
remains, but the hair loss can be noticed as a
general thinning of the hair on the top and front
of the head.
Non-genetic
(telogen effluvium) causes of hair loss in women:
- thyroid or liver disease
- hepatic or renal failure
- anesthesia
- childbirth
- starting or stopping birth
control pills
- very high fever
- severe stress
- anemia (sometimes seen in
runners)
- hypothyroidism or
hyperthyroidism
- essential fatty acid
deficiency
- zinc deficiency
- any condition that upsets
the ovarian, adrenal, or pituitary axis
- protein deficiency (common
with vegetarian diets)
- anorexia or bulimia
- too much vitamin A
- local viral, fungal, or
protozoan infection
- drug toxicity
- antimitotics - such as those
used for chemotherapy
- bromocriptine - used to
inhibit lactation
- beta blockers
- ACE inhibitors
- amphetamines
- anticholesterol agents
- systemic disease such as
lupus/DLE
- SOURCE:
LYNN DRAKE, M.D.
Non
genetic causes of hair loss are easily treatable.
Please consult a dermatologist.
Female Hair Loss Charts »
Treatment Options for Female
Hair Loss
Women who are seeking treatment
options for androgenetic alopecia (female pattern
hair loss / genetic hair loss) should stick to
treatment options approved by the established
medical community. At all costs, you must avoid
natural hair loss treatment methods that promise
miracle cures for hair loss with a shampoo or
herbal pill that is "proven" to block
dht or unclog pores. Learn more about hair loss treatment scams.
In women, minoxidil (rogaine for
women) has been proven to show minimal
improvements in 50 percent of women and moderate
improvements in 13 percent. Minoxidil requires a
twice a day application of either the 2-percent
or 5 percent solutions. The downside is treatment
is lifelong. Any gain achieved with minoxidil
will be lost if the patient stops using the
product.
Finasteride (Propecia), a hair loss
pill for men, is not applicable to women.
"In women, the use of a
systemic antiandrogen such as spironolactone
(Aldactone®) 50 to 200 mg per day, cyproterone
acetate (Androcur®), or flutamide (Eulexin®)
may have some benefit in reducing the amount of
hair thinning." Source
The only hair loss treatment method
that lasts a life time and is proven to work is
hair transplants. Treating women with hair
transplants requires a different approach then it
does to men.
Female Hair Loss Charts »
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