What are the causes of Hair Loss? Posted: 08-28-06 14:47pm
i've suddenly start loosing facial hair
loss. i was noticing spots on my face and
later came a bald spot on the back of my
head which seems to be growing.
You can visit a dermatologist to determine
the type of hair loss (alopecia) that you
may be experiencing. Generally there are
2 types of hair loss: diffuse and limited
(circumscriptive) hair loss.
I. Diffuse alopecia affects the whole
head. This type of hair loss can be:
A. Congenital, or
B. Acquired. Acquired hair loss
generally falls into one of 5 categories
1. acute - caused by toxins, drugs,
X-rays etc;
2. chronic - caused by the same
reasons as above but with lower intensity
so that the hair loss is delayed;
3. progressive (male hair loss or
“alopecia androgenetica”) - occurs in
men and it is conditioned genetically and
by age;
4. male pattern alopecia in females -
caused by a hormonal disturbance in
women;
5. chronic alopecia during severe
diseases (infective, leukemia, autoimmune,
cancers etc.).
II. Circumscriptive alopecia is limited to
some areas of the head. It can be either
Uncicatrixeal (reversible), or Cicatrixeal
(irreversible).
A. Uncicatrixeal (reversible). This
type of hair loss is categorized as
either:
1. Alopecia areata - caused by an
autoimmune disease;
2. Post infective - occurs after
local infection on the skin;
3. Traumatic alopecia - caused by
chronic pressure on some areas of skin of
the head or by pulling out (extracting)
hairs.
B. Cicatrixeal (irreversible) hair loss
can be caused by:
1. Alopetions in congenital
dermatoses;
2. Acquired – after contusions,
corrosions, burning, severe local
infections, X-rays etc.;
3. Specific causes.
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