Male pattern baldnessDefinition: Male pattern baldness is the
most common type of hair loss in men. It usually follows a
typical pattern of receding hairline and hair thinning on the
crown, and is caused by hormones and genetic predisposition.
Alopecia in men; Baldness - male; Hair loss in men; Androgenetic
alopecia Causes, incidence, and risk factors: Hair grows about
an inch every couple of months. Each hair grows for 2 to 6
years, remains at that length for a short period, then falls
out. A new hair soon begins growing in its place. At any one
time, about 85% of the hair on your head is in the growing phase
and 15% is not. Each hair sits in a cavity in the skin called a
follicle. Baldness in men occurs when the follicle shrinks over
time, resulting in shorter and finer hair. The end result is a
very small follicle with no hair inside. Ordinarily, hair should
grow back. However, in men who are balding, the follicle fails
to grow a new hair. Why this occurs is not well understood, but
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