You notice a dark, velvety patch on your neck and try to scrub it away, thinking it’s dirt. But it doesn’t fade.
Many people ignore these skin changes, assuming they’re harmless. In reality, they can be a warning sign from your body.
This condition is called acanthosis nigricans. It appears as darker, thicker, soft patches of skin.
These areas often develop in folds like the neck, underarms, or groin, but can also appear on elbows or knuckles.
It isn’t a disease itself, but a signal of something deeper—most commonly insulin resistance.
When insulin levels stay high, they trigger skin cells to grow faster, causing thickening and darkening.
It’s often linked to prediabetes, diabetes, or hormonal issues, though medications and genetics can also play a role.
Treating the root cause is key. With proper care and lifestyle changes, the skin can gradually improve over time.
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