If you are a diabetic, you may have eruptions on your feet that are termed “diabetic blisters”. “Blisters only happen in 0.5 % of diabetes patients in the US but are found twice as likely in men versus women”, says Dr. Miguel Cunha, a podiatry surgeon at Gotham Footcare in New York City.
These blisters generally appear on your feet but can be on your toes, legs, arms, hands, and fingers as fluid-filled pockets that form on the upper layer of your skin. It looks similar to a burn blister and is not painful. This fluid is usually clear but can lead to bleeding or pus if it gets infected. Also called diabetic bullae or Bullosis diadeticorum, blisters are not a cause of alarm, as they are normally painless and heal on their own.
3. Why Do They Happen?
Scientists have not really found a medical reason for why these blisters occur. They are seen more often with patients with diabetic neuropathy, which is nerve damage usually affecting the extremities, generally caused by uncontrolled blood sugar levels. They are also common in those with peripheral artery disease from poor circulation.
2. Risk Factors for Diabetic Blisters
One reason could be ill-fitting shoes, the friction of the skin, and foot moisture; again, due to poorly controlled blood sugar levels. This could also be due to bad circulation, common with diabetics, causing a loss of sensation in these areas. You should wear socks with your shoes to avoid injury.
Candida or yeast infections are seen more frequently in diabetic patients. These infections can irritate the toes and nailbeds casing a red, itchy rash.