Your doctor might call it digital sclerosis. It can happen with both type 1 and type 2 diabetes. The skin on the back of your hands or on your fingers or toes may be thick and waxy. Those patches may spread to your arms, upper back, and shoulders. In severe cases, you may have trouble moving your joints and need physical therapy. The best way to treat this condition is to control your blood sugar.
4.Shin Spots (Diabetic Dermopathy)
These can look like simple age spots. But they’re not. High blood sugar from diabetes damages small blood vessels and causes these brownish patches. These roundish, rough spots often appear on your shins. Dermopathy is usually harmless and should fade away in 18 months or so. But it also can last a long time.