to friction.
Acanthosis Nigricans
In some cases, thick, darkened skin may be linked to a condition called Acanthosis Nigricans.
This condition is often associated with:
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Insulin resistance
Weight gain
Hormonal imbalances
It typically appears as velvety, dark patches of skin and may occur around the neck, armpits, or ankles.Poor Circulation
Circulation issues can also affect the skin’s appearance.
When blood flow is reduced:
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Skin may appear darker or slightly swollen
Tissue may thicken over
time
This is more common in people