PCOS Causes, Symptoms, and Treatments
Worried about thinning hair and wondering what might be the cause? Learn how Polycystic Ovary Syndrome (PCOS) causes hair loss, how to spot the signs early, and discover what treatments to reverse the condition.
PCOS-related hair loss is caused by hormonal imbalances, particularly elevated androgens, which can lead to gradual thinning of the hair on top of the scalp.
What Happens with PCOS Hair Loss?
One of its lesser-known effects is hair thinning, which can be distressing and persistent. It typically presents as gradual hair loss across the top and crown of the scalp, a pattern known as female-pattern hair loss (FPB).
The main driver of the condition is excess testosterone, which converts into a more potent hormone called dihydrotestosterone (DHT). The DHT hormone binds to receptors in the hair follicles, causing them to shrink and produce finer, weaker hairs.
PCOS hair loss usually develops gradually and affects the top and crown of the scalp. Unlike patchy conditions like alopecia areata, the thinning is more even and widespread. The scalp often remains healthy in appearance, with no redness, scarring, or visible irritation.
Early Signs of PCOS Hair Loss
- Gradual thinning across the crown or top of the scalp
- Hair looks finer and flatter than before
- Increased shedding in the shower or on your pillow
Progression (for some women)
- Noticeable widening of the parting
- Hair becomes harder to style or volumise
- Reduced ponytail thickness
- Some women also experience facial hair growth alongside scalp hair loss
What's Happening in the Body
- PCOS leads to raised levels of androgens (male hormones) in the body
- These hormones convert to DHT, which miniaturises hair follicles
- Hair spends less time in the growth phase, causing earlier shedding
- Insulin resistance and chronic inflammation further disrupt healthy follicle function
Other Key Facts
- 1 in 10 women of reproductive age can be affected by the condition
- Hair thinning is often accompanied by acne, irregular periods, or weight gain
- Hair loss is non-scarring, meaning regrowth is possible
- Some women only notice hair loss after stopping hormonal contraception
Commonly Reported Triggers
Several internal and external triggers can worsen PCOS-related shedding:
- Elevated androgen levels (especially DHT)
- Insulin resistance
- Stress and sleep disturbance
- Crash diets or nutrient-poor eating habits
- Stopping hormonal contraception
- Nutritional deficiencies (iron, vitamin D, zinc, B12)
What Can Help?
There is good news. PCOS hair loss is treatable. Depending on your symptoms and overall health, treatment might include:
Lifestyle and Nutritional Changes
- Balanced, low-GI diet to improve insulin sensitivity
- Regular exercise to reduce inflammation and support hormones
- Ensure iron, vitamin D, zinc, and protein intake are sufficient
Gentle Hair Care
- Use sulphate-free, volumising shampoos
- Avoid heat tools, tight styles, or harsh brushing
- Consider scalp massage to stimulate blood flow
Emotional Support
- Hair loss can affect confidence and mental well-being
- Seek support from a trichologist or women's health specialist
When to Seek Help
Seek professional help if you notice hair thinning or excessive shedding, hair changes are affecting your well-being, or you're unsure if your symptoms are caused by PCOS. Early intervention gives you the best chance of regrowth and long-term improvement. You don't have to face PCOS hair loss alone. With the proper care and support, healthy hair is within reach.
Our Polycystic Ovary Syndrome (PCOS) Treatments
The Hair Loss Centre's trichologically formulated treatments and lotions fight the hormone response. It is best to treat the condition as soon as it is diagnosed. Let us help you.
What to Expect
Hair thinning from PCOS is gradual, but with consistent treatment, many women see improvement in hair volume and thickness, reduced shedding, and restored confidence. Initial regrowth may begin within 3 to 6 months, with full recovery expected in 9 to 12 months.
“Hair loss is one of the most emotionally difficult symptoms of PCOS, but it's also one of the most treatable. With the right combination of medical support, lifestyle changes, and hair-specific care, we see many women successfully slow down shedding and achieve noticeable regrowth.”
PCOS Hair Loss FAQ
Can PCOS Hair Loss be reversed?
The good news is that PCOS-related hair loss is usually non-scarring, meaning the hair follicles are still alive and capable of regrowth. With proper treatment, many women can expect to see their hair improve over time. Early intervention gives you the best chance of regrowth and long-term improvement.
Can PCOS really cause hair loss?
Yes. PCOS causes higher androgen levels such as testosterone, which shrinks hair follicles and shortens the growth cycle, resulting in gradual thinning over the crown and parting.
What does PCOS-related hair loss look like?
Thinning across the top of the scalp, a wider parting, reduced volume, and a thinner ponytail. Unlike patchy conditions such as Alopecia Areata, PCOS hair loss is diffuse and gradual.
Is this type of hair loss permanent?
No. PCOS-related hair loss is non-scarring, so hair follicles remain alive and capable of regrowth with proper treatment.
How long will it take to see results?
Many women see reduced shedding or early regrowth within 3 to 6 months, with visible improvements in thickness and density in 9 to 12 months or longer.
Can anything help speed up regrowth?
Yes. While there's no overnight fix, combining the right treatments makes a difference: topical treatments such as Vitastim and Biostim, and managing insulin resistance through diet and exercise.
Will weight loss help my hair?
In women with PCOS and insulin resistance, modest weight loss can improve hormone balance and potentially reduce shedding. Crash diets make it worse — slow, nutrient-rich approaches work best.
What's the best shampoo for PCOS hair loss?
Choose gentle, sulphate-free shampoos. Volumising or caffeine-based options may improve scalp circulation. Avoid heavy, fragranced, or drying products.
I'm losing hair but also growing it in unwanted places — is that normal?
Yes, this is common in PCOS. High androgen levels thin scalp hair while stimulating excess facial or body hair growth. Anti-androgen treatments can address both concerns.
Should I stop brushing or washing my hair?
No. Brushing and washing don't cause hair loss but make natural shedding more visible. Be gentle, avoid tight styles, heavy heat tools, or chemical treatments.
When should I see someone?
If thinning worsens, lasts longer than six months, or is affecting your confidence, consult a trichologist or GP. Early action maximises recovery chances.
Chief Trichologist
Gary Heron
With over 40 years' experience diagnosing and treating hair loss conditions, Gary has helped thousands of clients understand their condition and find the right treatment path.
- 40+ specialist experience in trichology
- Diagnosis-first approach to treatment planning
- Personalised treatment plans for all hair loss types
- Proven track record with thousands of clients
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