The many possible causes of hair loss
Everyone loses around 100 hairs from their head every day, but
serious hair loss isn’t a “one cause fits all” type of problem; many
factors contribute to hair loss, .
The most common causes of hair loss are listed here.
Genetics:
Yes, you knew it all along: It’s Mom’s (or Dad’s) fault
that you have no hair. The overwhelming majority (up to 98
percent) of men with balding fall into the genetic category.
Female genetic balding occurs much less frequently, but up to
50 percent of women have hair loss related to their inherited
genes.
The good news is that only seven percent of men develop the
most advanced balding pattern (left with just a 3 inch wreath
of hair around the side and back of the head). If you’ve inherited
this pattern, it’s usually evident by the time you’re 30.
In balding men, the hairaround the sides of the head almost always retains a normal,
thick appearance. In women, genetic hair loss is different; for
one thing, it tends to occur as overall hair thinning (including
the sides of the head) rather than loss of hair on certain areas
of the head.
Diseases:
A number of diseases as well as hormonal influences,
including thyroid disease and anemia, cause hair loss.
Autoimmune disease also can cause patchy hair loss.
Mechanical causes:
Mechanical hair loss is caused by external
forces such as tight braiding, rubber banding, turbans,
or other hair torture devices that put stress and strain on
your hair.
Stress:
In some cases, stress can contribute to hair loss in
those who are genetically predisposed to it or can result in a
sudden loss of hair in a condition called telogen effluvium.
Medications:
Many medicines, most notably anabolic
steroids, birth control pills, antidepressants, and tranquilizers,
can cause hair loss.
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