Hair Loss
Hair loss (alopecia) occurs naturally in all hair-bearing animals. Humans
lose about 100 scalp hairs every 24 hours. Loss of hair can become an
emotional and a cosmetic problem to an individual when it occurs in the wrong
place and time. A woman wakes up in the morning to be greeted by several
strands of hair on the pillow. Or she runs a quick comb through the hair
and observes to her chagrin a thick mass caught up in the teeth.
There are three cycles of hair growth: growing, resting, and shedding.
In humans, each follicle cycles at its own individual rate. In animals,
all hairs cycle at the same time, and change with the season. This is why
animal fur grow thicker in the fall and thinner in the spring and why human
beings do not shed hair.Unlike most animals, in humans, each hair has its own
pattern of growing, resting, and shedding. Each person sheds hair and regrows
hair every day.When this balance is disturbed and more hairs are shed than are
regrown, alopecia or hair loss results.
However, it is to be noted that true hair loss is distinct from ordinary damage
to the hair shaft. This kind of damage is usually caused by external chemicals
used to alter thephysical structure of the hair shaft.
Cosmetically significant hair loss can be divided into two categories, namely:
scarring alopecia and non-scarring alopecia.
In Scarring Alopecia, the skin that houses the hair follicle is irreversibly
damaged, and the resultant scarring has destroyed the hair follicle and
its ability to regenerate. When visual examination is not sufficient to diagnose
this problem, a biopsy may occasionally be necessary. Some skin diseases,
accidents, as well as physical trauma mayproduce this kind of damage.
In Non-scarring Alopecia, there is no irreversible physical damage to the scalp.
This type of hair loss is very common and can be completely reversed by treatment.
This hair loss can be as a result of a lot of things, including certain diseases,
drugs, aging, crash diet, as well as a genetic susceptibility to hair loss called
androgenetic alopecia (common balding).
Common causes of hair loss
Male-pattern baldness (androgenetic alopecia), is determined
genetically. The hair follicles in the center of the scalp and over the temple
of the afflicted individualbegin to thin out, producing small, fine hairs
which are barely visible. This is what results when testosterone is metabolized
by an enzyme in the hair follicle. And because the hair follicles over the
ears and back of the scalp do not possess this enzyme a fringe of normal
hair is maintained.
Female-pattern baldness is very similar to its male counterpart
although it is rarely as complete, more diffuse, and often a frontal
hairline is maintained.
Alopecia areata, a non-scarring alopecia, is an autoimmune disease
characterized by a spontaneously marginal loss of hair over an area.
At extreme, this can result in the loss of 100% of all body hair.
Uncommon causes of alopecia
Infections such as syphilis and fungal infections, poor nutrition,
skin diseases such as lupus and lichen planus, skin cancers, hormonal
disorder, kidney failure, liver failure, thyroid disease, can cause hair loss.
Treatment for Hair Loss
Finasteride helps stop hair loss in about 60% of men, and minoxidil
decreases hair loss in about 50% of men and women.
The best prevention of hair loss is early treatment. Research has shown
that minoxidil is most useful for people who have been losing hair for less
than five years.A doctor who can help determine if the medications are
working and who can watch for side effects of the medications should
follow up with people who are being treated with minoxidil or finasteride.
Medical Treatment
Androgenetic alopecia
Finasteride (Propecia): a pill taken once daily that blocks the activity
of an enzyme that metabolizes testosterone. Any regrowth is not
permanent, however. Finasteride is not currently used for the treatment of
hair loss in women.
Minoxidil (Rogaine, Loniten): This medication is rubbed directly onto the scalp.
It enlarges hairs and makes them grow for a longer period.
This works for both men and women.
It is active for balding at the top and back of the head and less active for the front
area of the scalp.
Warning: Stopping this medication can result in loss of the hair that
grew during its use.
Alopecia areata
Injection of steroids directly into the areas of skin affected can lessen the
hair loss for some time.
Hair loss in Women
Situations like pregnancy, crash dieting, or severe emotional trauma
can definitely result in thinning hair. In such cases its recommended that you
get on Rogaine Foam or Tricomin Therapy Spray or both, to help re-start the
hair growth process.
Female Androgenetic Alopecia
Androgenetic Alopecia in women is characterized by thinning freely
spreading throughout the scalp. This has been noted to be very similar to mens
Androgenetic Alopecia (Male Pattern Baldness). In both cases, the reason you
are losing your hair is a sensitivity of your follicles to the hormones in your scalp.
To be sure, the enzyme in the hair follicle metabolizes the hormone known as
DHT, or Dihydro-Testosterone changing it into a substance that does not
hair growth. This is why treatments for women's androgenetic alopecia include
DHT blockers, and antiandrogens, just like with men. Some typical treatments are
Topical Spironolactone (S5) cream, Revivogen, and
(with the consent of your doctor only), Propecia.
Female Androgenetic Alopecia is just one kind of diffuse hair loss experienced
by women. Some common causes of Female Androgenetic Alopecia are: starting
or stopping birth control, the postpartum period, and pre and early post
menopausal periods. With Female Androgenetic Alopecia, women rarely
go completely bald. The end result of the condition is a visible decrease in
density of hair in the affected areas.
Are you suffering from temporary hair loss (Telogen Effluvium)
or Androgenetic Alopecia?
Please always remember that Telogen Effluvium is temporary both
in cause, and duration. How do you determine whether you have
Androgenetic Alopecia, or Telogen Effluvium? Appropriate blood tests
should be able to revealwhether there have been any underlying hormonal
imbalances. And on your part you should beable to determine if you've had
any extremely traumatic experiences or conditions in the past.
If the blood tests reveal no imbalances, and you do not have any significant
life changing events to point to, and your hair has been thinning for a prolonged
period of time, then it's time to safely conclude that you are dealing with
Androgenetic Alopecia.
If however you can specify a traumatic event
(pregnancy, birth control pills, etc), your hair loss has been
short lived, or you identify a thyroid or other imbalance,
this can be called Telogen Effluvium.
Common Causes of Telogen Effluvium in Women
The following are the most common causes of telogen effluvium
(temporary hair loss) in women:
Birth Control: Starting or stopping birth control.
Postpartum Period: After pregnancy it is common to lose hair. It is typically
restored on its own or with the help of Rogaine Foam or Tricomin Therapy
Spray or both.
Hormonal: Changes in hormone levels or thyoroid imbalances are common
reversible causes.
Nutritional: Crash dieting, e.g for weight loss, severe nutritional deprivation,
alcoholism, zinc or iron deficiency can all be causes of TE. (Fever): 2 to
5 months after severe fever related illness, TE can begin.
Systemic Illness: Conditions such as Crohn's or Hepatic Disease, Syphilis,
Lymphoproliferative disorders, and inflammatory bowel disease.
Medications: A large number of drugs have been reported
to cause or possibly cause, diffuse Alopecia.
The treatment is the same for both Androgenetic Alopecia and Telogen
Effluvium. A growth stimulant is highly advised as a foundational course
of action, whether it be Rogaine Foam or Tricomin Therapy Spray or both.
Those with Androgenetic Alopecia should however begin to look into the
available antiandrogen treatments.
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