YOU HAVE SKIN DISCOLORATIONS
Darkening skin around the nape of your neck and under the armpits is a common early sign of insulin resistance, the precursor to diabetes. This often occurs in women with polycystic ovary syndrome.
Women with polycystic ovary syndrome (PCOS) are at an increased risk of experiencing insulin issues. What’s more, the skin underneath the arms is relatively thick and encounters regular contact friction, so if you are dehydrated, then the skin there will likely show it.
Applying lotion regularly and consulting a dermatologist should be your first steps when your skin appears ashy. But if your dry, discolored skin won’t go back to its original healthy state and/or you have other signs of diabetes, then talk to your primary care physician.