PCOS and Hair Loss: Why It Happens and What You Can Do

Noticing more hair in your brush, a widening part or a ponytail that doesn’t feel quite as thick as it used to? Hair thinning can be unsettling, particularly when you can’t work out what’s causing it.

For some women, these changes may be connected to polycystic ovary syndrome (PCOS), a hormonal condition that can affect menstrual cycles, skin, metabolism and hair growth.

One of the more confusing aspects of PCOS is that it can cause unwanted hair growth on the face or body while contributing to thinning hair on the scalp. And although PCOS is commonly associated with reproductive health, its effects can extend well beyond your periods.

The encouraging news is that understanding why your hair is changing can help you identify appropriate treatment and support. However, not every woman with PCOS experiences hair loss, and having PCOS doesn’t automatically mean it’s responsible for every change in your hair.

Let’s look at how PCOS can affect your hair, what signs to watch for and when it’s worth seeking professional advice.

What Is PCOS and How Does It Affect Hair Growth?

Polycystic ovary syndrome (PCOS) is a hormonal condition that affects women during their reproductive years. It can involve irregular menstrual cycles, increased androgen activity and changes in how the body responds to insulin.

Androgens are often described as male hormones, but women naturally produce them too. Testosterone is one example.

In some women with PCOS, higher androgen levels or increased sensitivity to androgens can influence how hair follicles behave.

Hair follicles don’t all respond to hormones in the same way. On certain areas of the body, androgen activity may encourage thicker hair growth. On the scalp, susceptible follicles may gradually produce finer, shorter hairs.

This process is known as hair follicle miniaturisation. Over time, the hair may look less dense, particularly around the central part or crown.

According to Jean Hailes for Women’s Health, PCOS can be associated with both excess facial or body hair and hair loss from the scalp.

It’s important to understand that not all women with PCOS have elevated testosterone levels, and hair loss can occur for several reasons. A proper assessment helps distinguish hormonal influences from other possible causes.

What Does PCOS Hair Loss Look Like?

PCOS-related hair loss often develops gradually, which means the earliest changes can be surprisingly easy to overlook.

You might notice that your usual hairstyle doesn’t have the same volume, or that more of your scalp is visible when you stand under bright bathroom lighting.

Perhaps you’ve always had thick hair, so the changes aren’t obvious to anyone else. But you know your hair, and something feels different.

Common signs can include:

• A widening part, particularly along the centre of the scalp.
• Reduced volume around the crown or top of the head.
• A ponytail that feels thinner than before.
• More scalp showing through under bright lighting.
• Individual hairs appearing finer than they used to.
• Gradual difficulty achieving the same fullness when styling.

Some women also experience increased shedding, although this doesn’t necessarily indicate the same type of hair loss.

PCOS-associated thinning may overlap with female pattern hair loss, where susceptible hair follicles progressively produce finer hairs.

For a closer look at what to watch for, read What Does PCOS Hair Loss Look Like? Early Signs of Thinning.

What’s Happening to My Hair? Understanding Common Changes

Hair changes can look similar even when their underlying causes are quite different.

This table is intended as a guide, not a way to diagnose the cause of your hair loss.

If you’re unsure whether the hair you’re finding is shedding from the root or breaking along the shaft, our article on Hair Breakage vs Hair Loss explains the difference.

Why Does PCOS Cause Hair Thinning in Some Women but Not Others?

Two women can have PCOS and experience completely different changes in their hair.

One might develop noticeable scalp thinning, while another experiences acne or unwanted facial hair without any significant change to her scalp hair.

Several factors may help explain this variation.

Sensitivity to Androgens

Hair follicles differ in their sensitivity to androgen activity. Some follicles are more susceptible to miniaturisation, even when blood hormone levels are not dramatically elevated.

This helps explain why the severity of hair loss doesn’t always match the results of a hormone test.

Family History and Genetics

Genetics can influence susceptibility to female pattern hair loss. If women in your family have experienced gradual thinning, inherited factors may be relevant alongside PCOS.

Insulin Resistance and Metabolic Changes

Insulin resistance is common in women with PCOS and may contribute to hormonal changes, including increased androgen activity.

However, insulin resistance doesn’t directly explain every case of hair loss. PCOS is a complex condition, and its effects vary between individuals.

Other Factors Affecting Hair Health

Having PCOS doesn’t protect you from experiencing other forms of hair loss.

Low iron levels, thyroid conditions, recent illness, significant stress, nutritional deficiencies and certain medications can all contribute to changes in hair growth or shedding.

Sometimes more than one factor is involved.

This is why identifying the underlying cause matters. Our article on The Most Common Root Causes of Hair Loss in Women explores some of these overlapping influences.

Is PCOS Hair Loss Permanent?

This is understandably one of the biggest concerns women have when they begin noticing thinning.

The answer depends on the type of hair loss, how long it has been occurring and what is contributing to it.

When PCOS is associated with female pattern hair loss, affected follicles may gradually produce finer hairs over time. Early, appropriate medical treatment may help stabilise hair loss and, in some cases, improve density.

However, results vary, and complete restoration of previous hair density cannot be guaranteed.

If increased shedding is caused by an additional temporary factor, such as illness, nutritional deficiency or significant stress, recovery may be possible once that contributing factor has been addressed.

Hair growth is slow. Even when treatment is effective, visible improvements generally take months rather than weeks.

PCOS-related hair loss doesn’t follow the same pattern for everyone. Understanding the type of hair loss is essential before deciding which treatments may help.

For more information, read Can PCOS Hair Loss Grow Back? What You Need to Know About Regrowth.

What Can You Do About PCOS-Related Hair Loss?

There isn’t one universal treatment for PCOS-related hair loss. The most appropriate approach depends on the underlying hair condition, your medical history and individual circumstances.

1. Seek Medical Advice About PCOS and Hormonal Factors

If you have unexplained hair thinning alongside symptoms such as irregular periods, acne or increased facial hair, speak with your GP.

A medical practitioner can assess whether PCOS or another condition may be contributing, arrange appropriate investigations and discuss treatment options.

If you’ve already been diagnosed with PCOS, it’s still worth discussing new or worsening hair loss rather than assuming it’s simply another symptom you have to accept.

2. Understand the Pattern of Hair Loss

Determining whether you’re experiencing gradual patterned thinning, excessive shedding or hair breakage is an important step.

At Tricho Health Clinic, a professional hair and scalp analysis examines visible changes in hair density, growth patterns, hair shaft condition and scalp health.

The assessment can also explore relevant factors such as haircare practices, recent illness, stress and existing blood test results.

This can provide useful information about your hair and help identify when further medical investigation may be appropriate.

3. Discuss Evidence-Based Treatments with Your Doctor

Depending on the diagnosis, medical treatments may include topical minoxidil or, for selected women, prescription medicines that address androgen-related effects.

These treatments are not suitable for everyone. Some require particular precautions around pregnancy or pregnancy planning, and all should be discussed with an appropriately qualified medical professional.

The international evidence-based PCOS guidelines provide guidance on managing the wider condition, while hair loss treatment decisions may also require dermatological assessment.

You can learn more in our guide to PCOS Hair Loss Treatment: What Works and What to Expect.

4. Pay Attention to Nutrition Without Assuming Supplements Are the Answer

Hair growth relies on adequate nutrition, including sufficient protein, iron and other essential nutrients.

However, taking supplements without identifying a deficiency is unlikely to address androgen-related follicle miniaturisation.

Some supplements can also interfere with medications or laboratory tests, and excessive amounts of certain nutrients may cause harm.

Our article on Hair Supplements for Hair Loss explains why identifying the cause of hair loss should come before choosing supplements.

5. Make Your Haircare Routine Gentler

While shampoos, conditioners and styling products cannot correct the hormonal causes of PCOS-related hair loss, appropriate haircare can help protect existing hair from unnecessary breakage.

Practical steps include using less heat, avoiding excessive tension from tight hairstyles, conditioning fragile lengths and being cautious with aggressive chemical processing.

If your hair has become finer, a different cut or styling technique may also make it easier to achieve the appearance of fullness.

These changes can improve how your hair looks and feels while underlying concerns are being assessed.

PCOS Hair Loss: Common Myths and Facts

Myth: Everyone with PCOS Will Experience Hair Loss

Fact: Hair loss is a recognised symptom of PCOS, but many women with the condition never experience noticeable scalp thinning.

Myth: If You Balance Your Hormones, Your Hair Will Automatically Grow Back

Fact: Managing hormonal factors may help some women, but regrowth depends on the underlying type of hair loss and the response of individual follicles.

Myth: PCOS Hair Loss Always Means You Have High Testosterone

Fact: Hair follicles may respond differently to androgen activity. Hormone blood tests alone don’t always explain the degree of thinning.

Myth: A Special Shampoo Can Reverse PCOS Hair Loss

Fact: Appropriate shampoos can support scalp hygiene and hair condition, but cosmetic products alone cannot reverse hormone-related follicle miniaturisation.

Myth: There’s No Point Seeking Help Unless the Thinning Becomes Severe

Fact: Earlier assessment can help identify the problem and allow appropriate medical treatment to be considered before further hair density is lost.

When Should You See a Trichologist for PCOS Hair Loss?

You don’t need to wait until hair thinning becomes obvious to everyone around you before having it assessed.

If you’ve noticed ongoing changes in density, increased shedding or difficulty understanding what’s happening to your hair, a professional assessment can be a useful step.

A trichologist can examine your hair and scalp, discuss the history of your hair changes and provide practical guidance about hair and scalp health.

However, trichologists do not diagnose PCOS or prescribe medical treatments. Those responsibilities belong to your GP, dermatologist or other appropriately qualified medical professional.

If hair loss is sudden, severe, patchy or accompanied by scalp pain, redness or scarring, prompt medical assessment is particularly important.

At Tricho Health Clinic in Riverstone, Cassandra brings more than 30 years of hair industry experience together with her qualifications as a certified trichologist. Her approach considers both the condition of the hair itself and the wider factors that may be influencing its appearance and growth.

For women living with PCOS, this can provide an additional perspective alongside appropriate medical care.

Find out more about when to see a trichologist for PCOS hair loss.

Understanding Your Hair Is the First Step

Experiencing hair loss when you have PCOS can be frustrating, particularly when you’re already managing other symptoms of the condition.

You may have tried changing shampoos, taking supplements or adjusting your styling routine, only to find that your hair continues to become thinner.

The important thing is to avoid assuming every change is caused by PCOS. Hormonal influences may be part of the picture, but other factors can contribute, and different types of hair loss require different approaches.

Understanding what’s happening gives you a better starting point for deciding what to do next.

Concerned About PCOS-Related Hair Loss?

If you’re noticing thinning, changes in hair density or ongoing shedding, Tricho Health Clinic can help you take a closer look at your hair and scalp.

Cassandra offers professional, non-invasive assessments to examine hair density, growth patterns and scalp health, along with practical guidance tailored to your concerns.

Where medical investigation or treatment is needed, this can complement the care provided by your GP or dermatologist.

Book a Hair & Scalp Analysis at Tricho Health Clinic

Tricho Health Clinic provides professional hair and scalp assessments and supportive care. Our services do not replace medical diagnosis or treatment for PCOS or other health conditions.