
Why a Simple Blister Is So Dangerous if You Have Diabetes

If you have diabetes, your feet are at risk for several serious conditions, including nerve damage and infections.
Dr. Dan Preece, Dr. Darren Groberg, and Dr. Christian Smith, our experienced podiatrists at Utah Musculoskeletal Specialists in Salt Lake City, want you to know that even a small blister can cause big problems for people with diabetes.
Here, we explain why diabetes makes your feet particularly vulnerable, how diabetic complications lead to serious infections, and when you should seek professional care for even minor foot issues.
How diabetes affects your feet
One of the main complications of diabetes is nerve damage, also known as diabetic neuropathy. Over time, high blood sugar levels can damage the nerves in your body, especially in your extremities, like your feet. This damage reduces your ability to feel pain, heat, or cold, which means that minor injuries, such as blisters, can go unnoticed.
Another issue is poor blood circulation, also called peripheral arterial disease. Diabetes can cause your blood vessels to narrow, restricting blood flow to your feet. Reduced circulation makes it harder for your body to heal wounds efficiently or fight off infections.
Together, neuropathy and circulation issues create a perfect storm where even minor injuries can quickly escalate.
Why a blister can become dangerous
Blisters may seem harmless, but if you have diabetes, they can become a gateway for severe complications. Here are a few reasons blisters spell bad news:
Delayed recognition
Neuropathy might prevent you from feeling the blister at all, so it can go untreated for days or even weeks.
Higher infection risk
With compromised blood flow, your immune system struggles to defend against bacteria or fungi entering through the blister.
Ulcers and amputations
An untreated infected blister can develop into a non-healing ulcer. According to the American Diabetes Association, roughly 15% of people with diabetes develop foot ulcers, and these wounds account for the majority of diabetes-related amputations.
Signs of infection you shouldn’t ignore
If you notice any of the following symptoms around a blister, it’s time to act fast. Call us immediately if you see:
- Redness or swelling that spreads beyond the blister
- Skin that feels warm to the touch
- Pus or other drainage from the blister
- Increasing pain
- A fever or chills, which may indicate a systemic infection
Even if you don’t notice these signs, it’s wise to have us evaluate any blister to prevent issues from worsening.
How to prevent blisters and protect your feet
Managing your diabetes is the first step in avoiding complications, but giving your feet extra care is equally important. Here are some simple preventive tips:
- Inspect your feet daily for blisters, cuts, or sores
- Wear well-fitting shoes that don’t rub or pinch
- Choose moisture-wicking socks to reduce friction and prevent excessive moisture
- Never walk barefoot, even at home, to avoid minor injuries
- Moisturize your feet to prevent cracks
- Don’t apply lotion between your toes; excess moisture can lead to fungal infections
To stay ahead of any potential issues, schedule regular check-ups at Utah Musculoskeletal Specialists.
How Utah Musculoskeletal Specialists can help
At Utah Musculoskeletal Specialists, Drs. Preece, Groberg, and Smith specialize in diabetic foot care to keep your feet healthy and functional. If you develop a blister, our expertise ensures you receive the appropriate treatment, which may include:
- Gentle cleansing and debridement of the affected area
- Advanced wound care treatments, including topical antibiotics
- Custom orthotics to minimize pressure on the injury
- Recommendations for diabetic shoes and socks to prevent future issues
For severe cases, they’re skilled in surgical options to address ulcers or infections, ensuring faster recovery and improved quality of life.
When it comes to diabetic foot health, prevention and timely intervention are crucial. If you’ve noticed a blister or other unusual changes in your feet, don’t wait. Call Utah Musculoskeletal Specialists in Salt Lake City today, or request an appointment online.
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