the neck, armpits, groin or other body folds. This is sometimes called acanthosis nigricans and can be linked with insulin resistance.
The American Academy of Dermatology explains that this skin change can be an early sign of diabetes or prediabetes and that people who develop it should be tested if they have not been diagnosed.
Skin changes do not confirm diabetes by themselves, but they are a useful clue.
10. Unexplained weight changes
Unexplained weight loss can occur when the body cannot use glucose properly and begins breaking down fat
