There are several ways in which diabetes symptoms may occur on the skin. Acanthosis nigricans is a skin condition in which creases of skin on the back of the neck, armpit, or groin become dark, thick, and velvety. This condition appears to be related to insulin levels in the blood and may be an early warning sign of diabetes. Other skin-related symptoms of diabetes may be frequent skin infections, the appearance of blisters, dark or thickened patches of skin, excessive skin tags, and raised bumps on the skin. Consult your doctor if you notice sudden or extreme changes in your skin.
7. Rheumatoid Arthritis
Some people who suffer from rheumatoid arthritis (RA) also suffer from rheumatoid vasculitis. RA is an autoimmune disorder that causes inflammation of the joints. Rheumatoid vasculitis is an inflammation of the blood vessels that can occur in those who have had RA. This vasculitis can result in sores and purplish bruising on the skin. In addition, rheumatoid nodules are lumps that may occur under the skin of rheumatoid patients in the fingers, elbows, forearms, knees. According to the Mayo Clinic, RA may also show up in the form of skin rash, swollen joints, stiffness, and loss of appetite.
6. Heart Disease
The American Academy of Dermatology lists 12 symptoms of heart disease that may show up on your skin. Swelling of the ankles is one sign that your heart is not able to effectively pump blood through your body. Skin that has become discolored and turned a purplish hue may indicate a blocked blood vessel and lack of oxygen to the area. Yellowish deposits of fat on your eyelids may indicate high levels of cholesterol in your bloodstream. A purplish netlike pattern on the skin that doesn’t disappear when your skin warms up may indicate blocked arteries.