PCOS, or Polycystic Ovary Syndrome, is a common hormonal disorder affecting 10–13% of women of reproductive age. It manifests as a lot of different symptoms that are still being researched by scientists, but in many cases, PCOS can show up like this: More hair on your chin, less on your head, or sometimes both at once (which is its own specific kind of confusing).

If you’ve noticed hair growing in new places it never did before, or your part getting wider while new hairs appear along your jawline, you’re not imagining it. These are some of the most common signs of PCOS.

We’re here to help break down the full picture: Why PCOS hair changes happen, where they show up, and what you can do about them (if you want to). No pressure or bad vibes—just information, so you can make decisions from a place of understanding instead of guesswork.

What PCOS Does to Your Hormones

PCOS is a hormonal condition. One of its defining features is elevated androgens—hormones like testosterone and DHEA-S. Everyone has androgens, but with PCOS the levels are higher. These hormones directly affect hair follicles—but not uniformly across the body.

In androgen-sensitive areas (face, chest, lower abdomen), higher androgen levels stimulate follicles to produce thicker, darker, coarser hair.

On the scalp, those same hormones do the opposite—they gradually shrink hair follicles, leading to finer hair and visible thinning over time.

Same hormones. Opposite effect. Entirely dependent on location. That’s why PCOS hair growth can feel so contradictory—because it is.

The Two Hair Changes Happening at Once

More hair where you don't want it

The clinical term is hirsutism. It’s coarse, dark hair growing in areas typically associated with male-pattern hair growth. A few pesky and persistent chin hairs? Common. New growth in new areas? Also very common.

Hirsutism can often show up in areas like:

• Chin
• Upper lip
• Jawline
• Chest
• Stomach
• Inner thighs
• Lower back

For many people with PCOS, the hair that grows in these areas is often not the fine, soft “peach fuzz” (aka vellus hair). It’s thicker, darker, more noticeable hair because those follicles have essentially switched modes under androgen influence. If you’ve had this experience, you’re not alone. Androgen excess and hirsutism affects roughly 65–75% of people with PCOS. Although how much hair grows, and where, can vary widely.

Less hair where you want it

On the scalp, androgens—specifically DHT (a byproduct of testosterone)—gradually shrink hair follicles. Over time, this can shorten the hair growth cycle, produce finer or shorter strands, and can lead to visible thinning. This pattern is often called androgenic alopecia or PCOS hair thinning, and it usually shows up along the part line, at the crown of your head, or at the hairline. This is an extremely common symptom of PCOS.

Where It Tends to Show Up

Face.

The most visible and common area for PCOS-related hair growth is on the face (chin, upper lip, etc). Hair here tends to be coarse and fast-growing, which is why it’s often the first place people notice changes. Threading works well for precision with minimal irritation—especially if you have acne-prone skin. Shaving is also completely fine here, despite the persistent myths (we’ll get to that).

Chest and stomach.

These areas are less talked about, but very common. Hair along the midline of the abdomen (from the navel downward) is strongly androgen-driven and shows up frequently with PCOS. Shaving and waxing both work here depending on your preference and skin sensitivity.

Inner thighs and bikini area.

Coarser hair in this zone means higher risk of ingrown hairs and razor bumps. Technique matters more here than anywhere else. Be gentle and be careful.

Lower back.

Even if you can’t see it, it’s common—and it’s a hard place to reach by yourself. Waxing is usually the more practical option here, but shaving is totally fine too.

Underarms.

Hair here may grow faster and thicker with PCOS, which usually means more frequent shaving, more wear on blades, and more attention to irritation prevention. Keep your blades fresh and clean.

Hair Removal Options

What you do with your body hair is entirely your call. If you’re looking for options, here’s a roundup of what actually works.

Shaving

Yes, shaving works for PCOS hair—including facial hair. And no, it does not make hair grow back thicker. That myth has been studied (repeatedly) and debunked for nearly a century. Shaving cuts hair at the surface—it doesn’t affect the follicle, which is where hair characteristics are determined.

What is different with PCOS?

• Hair is often coarser → blades dull faster
• Dull blades = more irritation + more ingrowns

So the adjustment is simple: replace blades more often than you think you need to. It’s also worth prioritizing fragrance-free shave products, gentle, non-stripping formulas, and proper prep (warm water, always).

Waxing and threading

Both remove hair from the root, so results last longer (typically 2–6 weeks). Threading is especially good for facial hair—precise, low irritation, no product contact. Waxing can be more efficient for larger surface areas like legs, but avoid waxing over active acne or very sensitive skin.

Laser hair removal

This is the most effective long-term reduction option for PCOS-related hair growth. Keep in mind it’s more expensive than shaving or waxing and requires multiple sessions. Results vary but many people see a meaningful decrease in regrowth over time. One PCOS-specific note: hormonal fluctuations can affect results. Combining laser with hormonal treatment often improves outcomes.

Electrolysis

This method is the only one recognized by the FDA as achieving permanent hair removal. This is different from hair reduction, which is associated with laser. Electrolysis works across all hair colors and skin types, which makes it the option for people who aren't candidates for laser. The process is slower and more expensive, but worth knowing about if long-term removal is the goal.

Can Treating PCOS Actually Help?

Yes—but slowly.

Addressing the androgen excess at the root of PCOS can slow new hair growth and reduce the coarseness of existing hair over time. Results typically take six to twelve months of consistent hormonal treatment to become visible. Existing terminal hairs generally need to be removed separately since treatment slows future growth rather than reversing what's already there.

Common approaches include:

• Hormonal birth control
• Spironolactone
• Metformin
• Inositol supplements.

What treatment is most appropriate depends on your specific hormone profile and fertility goals, so it is important to work through this with your OB-GYN or endocrinologist rather than navigating alone.

A targeted option: Eflornithine (Vaniqa)

Eflornithine is a prescription cream specifically for facial hair in PCOS. It works by slowing the hair growth cycle, so hair comes back more slowly between removal sessions. Keep in mind that it doesn’t remove hair completely and permanently, but it can help reduce how often you shave, wax, or remove hair. It’s important to note that this process can take months, not just a few weeks. But for many people, it meaningfully reduces the amount of upkeep over time and it’s worth it. If facial hair is your primary concern, ask your dermatologist about this option specifically.

Shaving Tips for PCOS Skin

Replace blades more often.

Coarser hair dulls blades faster. If you're getting irritation and your technique is solid, blade age is the first thing to check.

Warm water prep, every time.

Two to three minutes of warm water contact before shaving softens coarser hair enough that the blade cuts cleanly rather than dragging.

Exfoliate the day before, not the same day.

Coarser hair has a higher tendency to curl back into the follicle. Keeping follicle openings clear is the best prevention.

With the grain on the first pass.

Especially on sensitive or acne-prone skin. Against-the-grain cuts hair below the skin surface, which raises ingrown risk on already-coarse hair.

Skip alcohol-based products post-shave.

PCOS skin can run sensitive. Look for aloe, niacinamide, or ceramide-based formulas instead.

Bikini line and inner thighs: slower, lighter, fresher blade.

Shorter strokes, less pressure. This is the highest-risk zone for PCOS-related irritation and ingrowns.