That’s probably not just regular dirt that you can get washed off with soap or persistent scrubbing, that might be what they call ‘Acanthosis Nigricans’, which is an early symptom of diabetes.
Recently, a Twitter user who’s also a medical doctor with the username @fiezanizmohamed has shared the info with the public about those dark patches.
“Try looking out for the dark patches like these on the back of the necks of your children, siblings, or friends. This isn’t a mere accumulation of dead skin cells, this is acanthosis nigricans, one of the early signs of getting diabetes!” tweeted Dr. Hafizah.
She further explained that this can’t simply be scrubbed off and to check the blood sugar levels in your body.
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