Understanding Hair Transplants and Hair Loss - Pacific Hair


Understanding Hair Transplants and Hair Loss - Pacific Hair

Non-Pattern Hair Loss

Hair loss (or alopecia) that is not in a genetic male or female pattern is divided into:

1) Hair shedding .

2) Scarring alopecia .

3) Focal non-scarring alopecia .

4) Telogen effluvium.

5) Hair breakage problems .

6) Diffuse thinning .

A discussion of each follows .

Hair Shedding

Sometimes generalized hair thinning is caused by hair shedding . More than 100 hairs

per day are significant – it usually is a telogen effluvium (hairs which have entered the

resting or telogen phase of the growth cycle – and are thus falling out) . When hair follicles

enter the telogen phase, the hairs held firmly in those follicles become loose and

fall out . Certain severe toxins can cause anagen effluvium – where hairs are shed during

the anagen (growth) phase of the cycle – as the follicles are destroyed by a toxin . A

telogen effluvium usually occurs about three months after the precipitating event, whereas

anagen effluvium occurs closer to the toxic event. (See fig, 5 on page 16.)

Causes of Hair Shedding (telogen or anagen effluvium)

Telogen Effluvium Common Drugs That Can Anagen Effluvium –

Common Precipitating Events Cause Telogen Effluvium Common Precipitating Events

Childbirth ACE inhibitors Chemotherapy

Drug-induced Androgens Early alopecia areata

General anesthesia Anticholesterol agents Loose anagen syndrome

High fever Beta blockers Radiation

Hormonal changes Cimetidine Toxins

Protein-deficient diet Coumadin, Heparin

Starting or stopping OCAs Lithium

Stress Oral contraceptives (OCAs)

Sudden weight loss

Systemic disease

Vitamin A

U n d e r s t a n d i n g H a i r T r a n s p l a n t s a n d H a i r L o s s


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