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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? — T.K., Mineola, NY

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).

August 11th, 2006

Q: What is the difference between Rogaine for men and Rogaine for women? — G.K., Hawthorne, N.Y.

A: Rogaine for men is 5% minoxidil and Rogaine for women is 2%. Another difference is that the 5% solution has propylene glycol in it whereas the 2% is alcohol based. The propylene glycol helps the minoxidil penetrate the skin better and makes the medication more effective. Although both the alcohol and propylene glycol based preparations can irritate the scalp, propylene glycol can cause actual allergic reactions in those who are sensitive.

Propylene glycol is greasier to have on the scalp than the alcohol based formulation. For patients who complain of the greasiness, we advise Minoxidil 5% at bedtime and 2% in the AM.

August 10th, 2006

Q: Dr. Bernstein, is a follicular unit hair transplant, the way you perform it, very painful? — M.C., Laguna Niguel, C.A.

A: We perform our hair transplant procedures using long-acting, local anesthesia, so after the initial injections, the patient doesn’t experience any pain or discomfort.

The local anesthesia (a combination of Lidocaine and Marcaine) lasts about 4-5 hours. For long sessions, we give additional anesthesia before the first wears off.

August 9th, 2006

Q: Dear Dr. Bernstein, a full head of hair averages ~100 FU/cm2. To achieve the appearance of fullness with a hair transplant 50% is required. In one of your articles you say that you recommend 25 FU / cm2 to your patients. Is that the density per one session or the final one? If that is final density, then it is far below the 50%. Please explain as I am profoundly confused. — W.N., Easton, C.T.

A: If a person is to become a Norwood Class 6, the hair that we have available for us to transplant is only about 12% of what was there originally. This, of course, will vary from patient to patient depending upon one’s donor density and scalp laxity and a host of other factors.

We make the hair restoration look good by restoring 25-50% in the front, and proportionately less in the back. Logically one cannot restore 1/2 of ones original density to an entire bald scalp with only a thin strip of donor hair – there is just not enough hair, even with multiple sessions.

I transplant 25-35 FU/mm2 in one session, but this is the density created in the front, not overall.

Due to follicular unit graft sorting (placing the larger follicular units in the forelock area) this provides even more density than the actual numbers suggest. If someone is relatively certain to have more limited hair loss, then the numbers can be increased, but it is risky if you underestimate the degree of eventual hair loss.

August 7th, 2006

Q Do Rogaine and Propecia work synergistically? — N.W., Chappaqua, N.Y.

A: They are synergistic, since the mechanisms of action are different.

Rogaine directly stimulates hair growth, while Propecia is permissive for hair growth by blocking DHT, the byproduct of testosterone that causes hair to miniaturize and eventually disappear.

The important thing to remember, however, is that for most people, Propecia is far more effective.

August 4th, 2006

Q: Hi Dr. Bernstein. My question is: if you have a surgical scar or incision on your head that is relatively large, is it possible to do a hair transplant into this scar?

A: Hair can grow well in a scar. Since scar tissue generally has a somewhat lower blood supply than normal tissue, we have to make some adjustments in the technique.

When we perform a hair transplant into a large scar, we place the grafts into the perimeter first i.e. the outer edge of the scar. This allows new blood vessels to develop and permits additional hair to be added more centrally at a later date until the whole area is filled in.

If the scar is small or thin it can be transplanted as with normal tissue.

August 3rd, 2006

Q: I have early thinning on the top of my scalp and I was told to use Propecia, but I heard that is was only for men. What do you think? — T.G., Staten Island, NY

A: Women can’t take Propecia during the child-bearing years because, if ingested, it can cause birth defects in male offspring.

In post-menopausal women, where we see the greatest frequency of hair loss, it doesn’t seem to be effective.

In pre-menopausal women who do not plan to become pregnant or who already have children, we are still cautious about using the medication, since there effectiveness has not been proven and its long-term safety in this population has not been tested.

August 2nd, 2006

Q: Hair transplantation sounds like a really time-consuming procedure. How long does the hair transplant actually take? — S.M., Hell’s Kitchen, N.Y.

A: An average hair transplant, that involves the movement of 1,500 to 2,500 grafts, can take a team of up to six people, five to eight hours.

Surgical hair restoration is a very time-consuming, labor intensive process, where every aspect of the surgery must be precisely controlled to get maximum growth and an optimum cosmetic result.

July 31st, 2006

Q: Dr. Bernstein, I remember Senator William Proxmire. He was one of the first sort of high-profile people who had a hair transplant probably, what, thirty years ago, and to be honest with you, it wasn’t all that great. It looked kind of funny. Have we made any progress in the last twenty-five, thirty years? — A.E., Fort Lee, N.J.

A: When hair transplant surgery was first developed in the late 1950s, early 1960s, everybody was so ecstatic that it grew – that one could actually move hair from the back of the head to the top, and it would grow – that no one really considered either the long-term implications or the aesthetic aspects of the procedure. And the fact that the hair grew is actually a problem because it never went away when it was transplanted poorly.

Over the years the grafts have gotten smaller and smaller. So where in the ’60s and ’70s they were the size of pencil erasers, they gradually decreased in size until doctors were performing hair transplants using just a few hairs at a time. The major breakthrough came in the mid 1990s when we realized that hair doesn’t grow individually but grows in little tiny groups and these groups are called follicular units.

In modern hair transplant surgery (which began in 1995) hair is taken from the back of the scalp and moved to the front and top of the scalp in these individual groups of one to four hairs.

In this way the results can completely mimic the way hair grows in nature.

See the Follicular Unit Transplant (FUT) section for more information.

July 27th, 2006

Q: How does a hair transplant prevent hair loss? — M.M., White Plains, N.Y.

A: It doesn’t. Surgical hair restoration does just what it says. It restores hair to an area where the hair has been lost (by borrowing it from an area of greater density that is less important cosmetically, such as the back of the scalp).

To prevent, or slow down, further balding one would need to receive treatment with hair loss medication such as finasteride (Propecia).



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