Posts Tagged: Thyroid

Why is Hair Loss in Women Difficult to Diagnosis?

August 4th, 2009

Q: Why is hair loss in women difficult to diagnosis?

A: The majority of hair loss in women is diffuse. This means that the hair thins all over the scalp, rather than on the front and top characteristic of balding in men.

Diffuse hair loss can be caused by a number of things besides genetics; including medical problems such as anemia, thyroid disease, and polycystic ovaries; and medications such as birth control pills, blood pressure pills, seizure medications and blood thinners. Stress and pregnancy can also cause this type of diffuse hair loss.

The hallmark of genetic female pattern hair loss is miniaturization (change in hair shaft diameter).

Hair shedding is characteristic of many of the other conditions, but is less commonly seen in genetic hair loss.

For a complete discussion on hair loss in women, visit the pages for the diagnosis, causes, and classification of female hair loss. Or view photos of our female hair restoration patients for examples of Dr. Bernstein’s work on restoring hairlines, hair at the temples, and eyebrows.

Also, a reminder, Bernstein Medical – Center for Hair Restoration will be holding a Women’s Hair Loss Open House at our facility in Midtown Manhattan, New York City on Wednesday, August 12th, 2009 (4-6pm). You can register to attend the open house by following this link. We look forward to seeing you there!


Posted by Robert M. Bernstein M.D. at 8:10 am

Can Hair Loss be Caused by Pregnancy, Prozac, or Hyperactive Thyroid?

December 1st, 2006

Q: I had a baby 12 weeks ago and have recently been diagnosed with a hyperactive thyroid, although only slightly. I was also taking Prozac for 7-10 days. I am 27 and have been experiencing a significant amount of hair loss from all over my scalp. What are the chances that this would be permanent?

A: Based upon your history, you have three possible reasons for having a type of hair loss called telogen effluvium; thyroid disease, medication induced (Prozac) and pregnancy.

Telogen effluvium is diagnosed by a hair pull test and observing club hairs under the microscope. It is generally a reversible condition, regardless of the cause. Telogen effluvium most often occurs 2-3 months after the inducing event, so your pregnancy is the most likely cause.

Prozac would less likely be the problem since you have only been on it for a short time. Besides causing Telogen effluvium, thyroid disease can also alter your hair characteristics, which can make your hair appear thinner.

Other causes of hair loss, such as genetic female pattern hair alopecia, must be ruled out.

Please see Hair Loss in Women page on the Bernstein Medical – Center for Hair Restoration website for more information.


Posted by Robert M. Bernstein M.D. at 8:02 am

Can Hair Loss be Caused by Thyroid Problems or Fluctuations in Levels of Hormones Produced by Thyroid?

August 14th, 2006

Q: One of the things that I have noticed as a person who has needed to take thyroid medication for a long, long time, is that when my thyroid gets a little bit out of balance – when I’m not getting quite enough, I begin to notice is that my hair starts falling out. What about the role of thyroid for hair loss?

A: Both increases and decreases in thyroid levels can cause hair loss and changes in the levels of thyroid hormone can change the consistency of one’s hair. Elevated hormone levels cause scalp hair to be fine and soft, with diffuse thinning being relatively characteristic.

When thyroid hormone levels are low, the hair becomes dry, coarse, and brittle. Hair loss can be either patchy or diffuse (involving the entire scalp).

Low levels of thyroid hormone are associated with the loss of the outer 1/3 of the eyebrows and a decrease in body hair. When changes in thyroid hormone levels are abrupt, there can be dramatic shedding (telogen effluvium).

The most important thing to do if you have thyroid disease is to try to keep the levels within a normal range and keep them as steady as possible. If you are taking thyroid medications, try to use them on a regular basis, because alterations of ones in hair can be caused by large fluctuations in the levels, as much as by the absolute values.


Posted by Robert M. Bernstein M.D. at 11:16 am






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