Diabetic bullae, more commonly known as diabetic blisters, is a kind of skin lesion occurring in people with diabetes mellitus. Why do they develop, and how will you treat them? Find out here.
Medically reviewed by Dexter Macalintal, MD
Diabetic bullae, more commonly known as diabetic blisters, is a kind of skin lesion occurring in people with diabetes mellitus. Why do they develop, and how will you treat them? Find out here.
Reports say diabetic bullae, with the medical name bullosis diabeticorum, rarely occurs. But when they do, it is mostly in people with uncontrolled blood sugar levels.
However, there are also cases when the blisters serve as the first sign of an underlying impaired glycemic control. Some reports even say diabetic bullae may develop in prediabetes.
The blisters can be described as¹:
In many instances, the blisters develop in the lower extremities, particularly on the tip of the toes or the surface of the feet. Still, they can appear in the upper extremities, particularly in the forearms.
Finally, note that the shape and size of diabetic bullae varies. Their diameter can be anywhere between 0.5 to 17 cm. They may also develop alone or in groups.
The exact cause of diabetic bullae is unknown. Experts believe it involves multiple factors.
For instance, several researchers concluded that people with insulin-dependent diabetes have a “marked reduced threshold to suction blister development” than the control group2. This means that people with diabetes are more vulnerable to the development of blisters³.
Some experts, on the other hand, speculate that diabetic bullae may develop due to trauma, considering it commonly occurs in the feet.
These factors, however, do not explain why diabetic blisters rarely occur in the majority of diabetic population.
Another interesting thing about diabetic bullae is that they usually heal on their own without any treatment in 2 to 5 weeks.
Hence, if you develop diabetic bullae, treatment and management should focus on preventing infection. This points to NOT puncturing or bursting the blister.
Some of the steps taken to manage blisters include:
Despite being a typically self-limiting skin condition, please consult a doctor if the blister leads to redness, swelling, or significant pain.
Medical help is also necessary if the blister has been “de-roofed,” meaning the skin underneath becomes exposed. Cases like this require aggressive wound care to prevent ulceration or infection.
Since the exact cause of diabetic bullae is unknown, there’s also no one way to prevent it.
At this point, the best prevention is to keep your blood sugar under control. Be sure to follow your nutrition plan, perform regular, appropriate exercise, and take your medications.
It might also help you to avoid trauma as much as you can. Always inspect your skin for wounds, wear shoes that fit properly, and use protective clothing when you need to do something that may cause trauma. For instance, wear protective gloves when handling equipment.
Diabetic bullae or blister is a rare skin condition in people with diabetes mellitus. The cause is unknown but the blisters are usually painless, non-inflammatory, and self-limiting. Treatment and management mainly revolves around keeping the blisters intact to prevent infection. If you develop blisters, please consult your doctor to have the right diagnosis and treatment.
Learn more about Diabetes Complications here.
Disclaimer
Hello Health Group does not provide medical advice, diagnosis or treatment.
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Medically reviewed by
Dexter Macalintal, MD
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