For people living with diabetes, protecting the feet is about much more than comfort. Diabetes can affect nerves, blood vessels, wound healing, and the body’s ability to respond to injury. When diabetes occurs together with peripheral artery disease (PAD), a small foot problem can become more serious.
PAD develops when arteries supplying the legs and feet become narrowed, usually because of plaque buildup. Reduced blood flow means less oxygen and fewer nutrients reach the tissues. That can make wounds harder to heal and increase concern about infection and limb health.
Why Diabetes and PAD Are a Concerning Combination
Diabetes can affect the feet in two important ways.
First, diabetic neuropathy may reduce sensation. A patient may not feel a blister, cut, pressure point, or other injury right away.
Second, diabetes is associated with a higher risk of vascular disease. If arterial blood flow is reduced, the same injury may take longer to heal.
When reduced sensation and reduced circulation occur together, wounds can progress before they are noticed.
What Foot Problems Should You Watch For?
People with diabetes should regularly look for changes such as:
- Blisters or cuts
- Open sores
- Red or irritated areas
- Pressure points
- Cracked skin
- Changes in skin color
- Swelling
- Darkened tissue
- Wounds that are not improving
Do not rely only on pain as a warning sign. Neuropathy may make an injury less painful than expected.
What PAD Symptoms Can Occur in People With Diabetes?
PAD may cause leg pain or cramping while walking that improves with rest. However, not everyone experiences classic symptoms.
Other possible signs include a cold foot, numbness, weakness, reduced walking ability, skin changes, or a slow-healing wound.
Because neuropathy can change how the feet feel, circulation problems may sometimes be more difficult to recognize in a person with diabetes.
Check Your Feet Every Day
A simple daily foot check can help identify problems early. Look at the tops, soles, heels, toes, and spaces between the toes. If you have difficulty seeing the bottom of your feet, use a mirror or ask someone you trust to help.
Wear properly fitting shoes and avoid walking barefoot if your healthcare provider has advised against it. Report new wounds or concerning skin changes promptly.
Why Blood Flow Matters for Wound Healing
Healing tissue requires a steady supply of oxygen, nutrients, and infection-fighting cells. These are delivered through the bloodstream.
If an artery is severely narrowed, wound care alone may not be enough. The underlying circulation problem may also need to be addressed.
How Is Circulation Evaluated?
A vascular specialist may examine pulses in the legs and feet and perform noninvasive testing. The ankle-brachial index is commonly used to evaluate PAD, although some people with diabetes have calcified arteries that can make ankle pressure measurements less reliable.
Additional testing, such as toe pressures, Doppler ultrasound, or vascular imaging, may be used when appropriate.
What Happens If Severe PAD Is Found?
Treatment depends on the severity of disease and the patient’s symptoms. Care can include smoking cessation, cholesterol and blood pressure management, diabetes control, medications, structured exercise, preventive foot care, wound care, and procedures to restore blood flow when necessary.
For chronic limb-threatening ischemia, revascularization may be recommended to improve perfusion, support wound healing, relieve ischemic pain, and help preserve the limb.
Do Not Wait on a Wound That Is Getting Worse
A foot wound that is not healing, increasing pain, darkening tissue, or significant changes in temperature and color should be evaluated promptly. Sudden severe symptoms may require emergency care.
At Vascular Centers of America, our team evaluates peripheral artery disease and circulation problems that can affect wound healing and limb health.
If you have diabetes and are concerned about poor circulation or a foot wound, contact Vascular Centers of America for a vascular evaluation.