Unwanted hair is a problem shared by both men and women. In many
cases the condition runs in families. Race can also be a factor
— whites are more prone to having excess facial hair than are
Asians and blacks. Some people experience unwanted or excess
hair from the time they reach puberty; others find it to be a
condition that gets worse with age. Some women experience
additional hair growth during pregnancy or menopause. Women who
experience sudden hair growth should consult with their
physicians, as this may be a sign of other medical conditions.
Hair does not come in any one size or type. Follicles in
different parts of the body produce differing types of hair.
Hair can grow in thick, bushy patches or in long thin strands.
In addition, hair is produced in follicles that can be found at
different depths and densities — as close to the skin's surface
as a millimeter or as deep as five millimeters or more. Until
recently, this great variety in hair types and body locations
made long-lasting hair removal a significant challenge.