You noticed it in the mirror one day.
A dark patch on the back of your neck. Maybe under your arms. Maybe in the creases of your inner thighs.
It feels different too. Thicker. A little velvety, almost soft in a strange way, but not in a good way.
Your first thought was probably about hygiene. So you scrubbed harder in the shower. You tried a new soap. Maybe you ordered a brightening cream off Instagram because an ad promised it would 'even your skin tone.'
A few weeks went by and nothing changed.
So you tried something else. An exfoliating scrub. A different deodorant, just in case it was something you were using. Maybe you started wearing higher necklines or stopped raising your arms in certain shirts, just so no one would notice.
And still, the patch stayed exactly where it was.
Here's what nobody told you: none of those things were ever going to work, because this was never a hygiene problem to begin with.
It's your body sending you a signal and once you understand what it's actually telling you, it stops feeling confusing, embarrassing, or like something is wrong with your skin specifically. It starts feeling like useful information you can actually do something with.
What These Patches Actually Are
PMOS | PCOS shows up differently for every woman. What follows is one common pattern behind this, not the only one. If it doesn't quite match your body, that doesn't mean this isn't PMOS | PCOS, it just means yours is showing up a different way.
The dark, velvety patches you're seeing have a name. It's called acanthosis nigricans.
It shows up most often on the neck, underarms, and groin, anywhere skin folds against skin. Sometimes it appears on the knuckles, elbows, or knees too. The skin in those areas often looks darker than the skin around it, and it usually feels thicker to the touch, sometimes even slightly raised or textured, almost like suede.
Here's the part that matters most. Acanthosis nigricans isn't its own disease but it's a visible marker. Specifically, it's one of the clearest outward signs that your body is dealing with insulin resistance.
Here's how that actually happens. When your body's cells stop responding properly to insulin, your pancreas compensates by producing more of it. That excess insulin doesn't stay contained to your blood sugar regulation. It also binds to receptors on certain skin cells, called keratinocytes and fibroblasts, and tells them to multiply faster than normal. That overgrowth of skin cells is what creates the thickening and darkening you're seeing. It's not pigment sitting on top of your skin. It's your skin cells themselves changing in response to what's happening inside your body.
This is also why no amount of scrubbing, exfoliating, or lightening cream ever worked. You were treating the surface of something that starts on the inside.
A few things worth knowing, so you can recognize this with more confidence:
Acanthosis nigricans tends to develop gradually, over months or longer, rather than appearing overnight. It's more noticeable on darker skin tones, though it can show up on any skin tone and it's often dismissed, by the person experiencing it and sometimes by providers too, because it doesn't look medically alarming. It just looks like a skin discoloration. That's exactly why so many women live with it for years without ever connecting it to anything else going on in their bodies.
You might be wondering, if I just lose weight, will this go away on its own? Not necessarily, and that question is exactly the trap. The patch was never really about weight. It's about insulin, and insulin resistance shows up in bodies of every size. Chasing the number on the scale without ever addressing what's happening with insulin often leaves the patch exactly where it started, and leaves you frustrated, discouraged, and no closer to an answer.
None of this happened because you did something wrong. You didn't cause this by using the wrong soap, skipping a shower, or not exfoliating enough, and you are far from the only woman who has stood in front of a mirror trying to scrub away something that was never sitting on the surface to begin with. This is common, it is explainable, and it is not a reflection of anything you failed to do.
If this is starting to sound familiar, that connection between what shows up on your skin and what's happening underneath is exactly the kind of thing coaching helps you untangle. Schedule Your Free PMOS | PCOS Strategy Session and let's untangle it together.
Why This Matters So Much for PMOS | PCOS
Insulin resistance is deeply connected to PMOS | PCOS. It's one of the most common underlying features of the condition, even in women who aren't significantly overweight, which surprises a lot of women who assume insulin issues only happen to people carrying extra weight.
That connection runs in both directions. Insulin resistance can drive up androgen production, which worsens many of the symptoms you may already be dealing with, things like irregular cycles, acne, or excess hair growth. And PMOS | PCOS itself makes your body more prone to developing insulin resistance in the first place. They reinforce each other in a loop that doesn't resolve on its own.
So when you see those patches on your skin, your body isn't being cosmetically inconvenient. It's giving you an early, visible clue about what's happening metabolically beneath the surface, often before bloodwork would even flag it. That's valuable information. It's not something to hide under makeup or lightening cream, and it's not something to feel embarrassed about. It's actually your body trying to help you catch something early.
What to Do Next
If you're noticing these patches, the most important next step is a conversation with your doctor.
This isn't something to self-diagnose or self-treat at home. A doctor can run the right labs, things like fasting glucose, fasting insulin, or an A1C, to get an actual picture of how your body is managing blood sugar. They can also rule out other, less common causes of skin changes, which is part of why this conversation matters even if you're already confident PMOS | PCOS is the reason.
What you bring to that appointment matters too. Many women don't think to mention skin changes at a PMOS | PCOS visit, because it doesn't feel like a 'real' symptom worth bringing up next to things like missed periods or fertility concerns. It is real, and it's relevant. Tell your doctor exactly what you're seeing, where on your body, and how long it's been there. That detail can shape which labs they decide to run.
Where Coaching Fits In
A diagnosis or a lab result is the start of the conversation, not the end of it.
This is where coaching becomes valuable. Once you understand that these patches are connected to insulin resistance, the next question is usually, 'Okay, now what do I actually do about this day to day?' Your doctor can tell you what's happening. Coaching helps you figure out how to live with it.
That's exactly the gap coaching fills. We look at your whole picture. Your eating patterns, your sleep, your stress load, your movement, even how your oral health fits into the inflammation picture. From there, we build a realistic path that supports how your body manages insulin over time. Not a 30-day reset you can't maintain and not a rigid food list that falls apart the first stressful week. A sustainable shift that actually holds up in your real life, with someone checking in and helping you adjust as you go.
If you've been noticing these changes and wondering what they actually mean for you, you don't have to figure it out alone.
Your free strategy session is a relaxed conversation where you tell me what's been going on, I listen to the whole picture and you leave with one or two clear next steps whether we work together or not.
Schedule Your Free PMOS | PCOS Strategy Session -> No pressure. No pitch. Just a real conversation about what your body might be telling you.
If you've noticed other changes too, things like hormonal acne, skin tags, bleeding gums, or thinning hair along your part, those are worth a read too. These signals tend to show up together, and seeing the fuller pattern often makes everything click into place faster than looking at just one symptom on its own.
