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Hair Loss (cont.)

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What is telogen effluvium?

Under normal conditions, scalp hairs live for about three years (the anagen, or growing, phase); they then enter the telogen, or resting, phase. During the three-month telogen period, the hair root shrivels up into a small white "club," then the hair falls out. It is therefore normal to lose about 100 hairs every day, more of them on days when shampooing loosens the hairs that are ready to fall out. The hairs are then replaced by the body.

Sometimes people who worry about losing their hair start noticing hairs on their pillow or in the sink, not realizing that they've always been there. A close look at these will usually reveal the white club at the end, showing that these hairs were already dead. Normally, about 10% of scalp hairs are in the telogen phase.

There are several circumstances that produce a "shock to the system" that alters the hair growth rhythm. As a result, as much as 30%-40% of the hairs can cycle into telogen. Three months later, hairs come out in a massive shedding (effluvium), especially near the front of the scalp. These include

  • childbirth,
  • high fever,
  • sudden weight loss (crash dieting),
  • surgery,
  • severe illness,
  • severe emotional stress or loss.

None of these need be life-threatening, nor does hair loss usually follow them. (Moreover, it can happen after one pregnancy, but not the next.) But when the hair falls out, it's all over the place -- covering the pillow, clogging the drain, and so forth. Paradoxically, the more dramatic the hair loss, the better the prognosis, because when the body gets back into normal rhythm, most if not all of that hair comes back; these people need no special treatment. Normal shampooing can continue, because this only loosens hairs that were going to come out anyway.

Medically Reviewed by a Doctor on 3/24/2014

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Hair Loss - Age and Pattern Question: How old were you when you first experienced hair loss? How would you describe or classify the pattern?
Hair Loss - Vitamins Question: What vitamins do you take for hair loss? Have you noticed an improvement since taking them?
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Hair Loss - Telogen Effuvium Question: Describe your experience with telogen effuvium, including the suspected cause for your "sudden" hair loss.
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Source: MedicineNet.com
http://www.medicinenet.com/hair_loss/article.htm

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