What is Menopausal Hirsutism? And Why Am I Gaining Facial Hair While Losing Scalp Hair?

What Is Menopausal Hirsutism?

Hirsutism is the medical term for the growth of coarse, darker hair in women in areas where men typically grow hair, including the chin, upper lip, jawline, chest, or abdomen. This is a common side effect of Polyendocrine Metabolic Ovarian Syndrome (PMOS) for women at any age, but some women with or without PMOS only experience it during perimenopause.

If this starts happening during this life stage, you might assume that your body is suddenly producing more testosterone, but that isn’t exactly what’s happening. 

During your reproductive years, estrogen acts like a protective buffer. One of its many jobs is stimulating the production of sex hormone-binding globulin (SHBG), a protein that binds to testosterone in the bloodstream, which limits how much is freely available to your tissues.

That's important because as estrogen levels decline during perimenopause, SHBG levels decline too. That leaves more free testosterone circulating throughout your body. In other words, your body isn't necessarily making more testosterone. There's simply less SHBG available to bind to it, which means more testosterone remains biologically active and able to interact with the receptors in tissues like your hair follicles.

That shift in hormone balance is what affects hair follicles throughout your body.

Why Your Chin and Scalp Respond So Differently

The same hormonal shift that's causing coarse hairs to appear on your chin is likely also contributing to thinning hair on your scalp. Your hair follicles are at the root of these changes.

Hair follicles are ultra-sensitive to your systemic hormones, and they respond to hormonal changes differently based on where they’re located in your body. Specifically, free testosterone is converted into the highly potent androgen dihydrotestosterone (DHT) inside the follicle.

On your chin and jawline, this androgen encourages your once-tiny, nearly invisible “peach fuzz,” or vellus hairs to become thicker, darker hairs that just keep growing back no matter how many times you dermaplane or shave.

On your scalp, those same hormones often have the opposite effect. Over time, they shorten the hair growth cycle and gradually shrink individual hair follicles, causing hair to become finer and less dense. It’s what contributes to female-pattern hair loss, also known as androgenetic alopecia, which appears as widening of the part and diffuse thinning.

How Common Is It?

If you've suddenly found yourself carrying tweezers everywhere, you're far from alone. Research suggests that somewhere between 15% and 40% of postmenopausal women develop increased facial hair.

“Unlike hot flashes and night sweats, many patients don’t mention their new facial hair due to the stigma still around body hair in women and mentioning something seen as a ‘cosmetic issue’. So this problem is probably even more common than I even hear about as a menopause specialist asking women to tell me about their symptoms.” - Dr Traci Kurtzer

Unlike hot flashes, which often improve with time, hirsutism tends to be progressive. Once a hair follicle has converted from producing fine vellus hair to thicker terminal hair, it won't switch back on its own. 

Plucking, shaving, and dermaplaning are good bandaid solutions, but these hairs will continue to appear again over and over again.  

When Facial Hair or Hair Loss Isn't “Just Menopause”

Noticing a few coarse hairs occasionally sprout on your chin during perimenopause is pretty normal. What’s not normal? Rapid, dramatic hair growth that develops over a matter of weeks or months.

Also, if facial hair appears suddenly or is accompanied by virilization symptoms like a deepening voice, rapid hair loss with a receding frontal/temple hairline, severe acne, increased muscle mass, or changes in your menstrual history before menopause, it's important to talk with your clinician. 

While menopause is the most common explanation, these symptoms can occasionally point to another condition, such as ovarian hyperthecosis, severe insulin resistance, or, more rarely, an androgen-producing ovarian or adrenal tumor. 

“ This used to be rare, but not so much anymore. I am hearing from more and more patients with symptoms of excessive hyperandrogenism, including facial hair, a receding hairline and acne, from over-aggressive testosterone replacement, leading to supraphysiologic or male testosterone levels.” - Dr Traci Kurtzer 

However, if you are noticing a receding frontal hair line, especially with a loss of baby hairs present or a shiny appearance, that can be a sign of Frontal Fibrosing alopecia, an autoimmune condition which warrants a speedy trip to the dermatologist to prevent permanent baldness. 

What Can You Do About It?

You don’t just have to live with unwanted facial hair in perimenopause and beyond. There are treatments you can do to help slow hair growth while also removing existing hair on your face.

For perimenopausal women, combined oral birth control pills with estrogen and a progestin with a low androgen index can help decrease androgen levels, increase SHBG and thus, may help prevent androgenic alopecia. Birth control pills with drospirenone, an anti-androgenic progestin, alone or combined with estrogen, can also be considered.

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You may also benefit from hormone replacement therapy (HRT) if you’re experiencing other menopausal symptoms, such as night sweats, mood swings, hair loss on your scalp, and weight gain in addition to menopausal hirsutism. Progesterone blocks the enzyme 5-alpha-reductase, which is responsible for converting testosterone into DHT and oral estradiol increases SHBG, thus decreasing bioavailable testosterone. 

Prescription topical medications such as eflornithine cream can help slow the rate of facial hair growth without affecting your hormone levels throughout the body. In certain situations, clinicians may also prescribe anti-androgen medications like spironolactone to reduce androgen activity.

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For hair that's already present, laser hair removal and electrolysis remain the most effective long-term options. Laser targets darker hairs, while electrolysis can also detect gray or white hairs that become more common after menopause.

Questions Worth Asking Your Clinician

If you're noticing both increased facial hair and thinning on your scalp, consider asking your doctor the following questions:

1. Are these changes likely related to menopause, or should we look for another cause? If related to menopause, can hormone therapy be considered? 

2. Would it make sense to check my testosterone or other androgen levels?

3. Am I a candidate for prescription treatments like eflornithine or spironolactone?

4. If I'm considering laser hair removal or electrolysis, how can we combine that removal treatment with medical treatment to help prevent new hairs from developing?

The Bottom Line

Menopausal hirsutism can feel especially frustrating because it often happens alongside thinning hair on your scalp. Both of these changes are often driven by the same shift in hormone balance as your estrogen begins to decline during perimenopause.

But that doesn’t mean you have to be subjected to facial hair forever. There are plenty of solutions, from prescription medications to laser treatments and electrolysis. Talk with your doctor about treatment options that align with your health goals.

Frequently Asked Questions

Why does facial hair grow during menopause even if testosterone levels aren't increasing?

During perimenopause, declining estrogen levels lead to a drop in sex hormone-binding globulin (SHBG), a protein that normally binds to testosterone in the bloodstream. With less SHBG available, a higher percentage of circulating testosterone remains free and biologically active. This unbound testosterone interacts directly with hair follicle receptors, stimulating coarse hair growth even though overall testosterone production has not actually increased.

Why does the same hormonal shift cause facial hair to thicken while scalp hair thins?

Hair follicles respond differently depending on where they are located on the body. Inside the follicle, free testosterone converts into dihydrotestosterone (DHT). On the chin and jawline, DHT prompts fine, nearly invisible "peach fuzz" to convert into thick, dark terminal hair. On the scalp, however, DHT shortens the growth cycle and gradually shrinks individual hair follicles, leading to female-pattern hair loss and diffuse thinning.

What medical treatments can help manage menopausal hirsutism?

Treatments focus on balancing androgen activity and removing existing hair. Hormone replacement therapy (HRT) or anti-androgenic birth control can raise SHBG and limit the conversion of testosterone to DHT. Medical interventions also include prescription topical eflornithine cream to slow new hair growth and oral anti-androgens like spironolactone. For long-term removal of hair that has already converted to coarse growth, laser hair removal and electrolysis are the most effective options. **SEO Title Tag** Menopausal Hirsutism: Causes, Scalp Hair Loss & Treatment Options **Meta Description** Discover why estrogen decline causes menopausal hirsutism and facial hair growth, how it affects your scalp, and effective medical treatment options.

References

Hamzavi, I., Tan, E., Weiss, J., Berson, D., & Lumley, J. (2007). Efficacy of eflornithine 13.9% cream combined with laser in facial hirsutism in women: A randomized trial. Journal of the American Academy of Dermatology, 57(1), 43–49.

Kasperlik-Załuska, A. A., et al. (2023). Approach to investigation of hyperandrogenism in a postmenopausal woman. The Journal of Clinical Endocrinology & Metabolism, 108(5), 1243–1252.

Martin, K. A., Chang, R. J., Ehrmann, D. A., Ibanez, L., Lobo, R. A., Rosenfield, R. L., & Welt, C. K. (2018). Evaluation and treatment of hirsutism in premenopausal women: An Endocrine Society clinical practice guideline. The Journal of Clinical Endocrinology & Metabolism, 103(4), 1258–1274.

Rosenfield, R. L. (2005). Clinical practice: Hirsutism. New England Journal of Medicine, 353(24), 2578–2588.