Frequently Asked Questions

No. Anyone with a foot wound, darkened toes, poor circulation, or concerning foot pain may benefit from this information. However, diabetes is one of the strongest risk factors for foot ulcers, poor healing, infection, and peripheral artery disease, so it is a major focus of the site.

No. The assessment is educational and triage-oriented. It is designed to identify warning signs that may suggest the foot needs more specialized circulation evaluation — not to diagnose any medical condition. A licensed clinician must make that determination through direct evaluation.

Because many patients do not search for the term PAD, but they do search for answers when a foot wound will not heal, a toe becomes dark, or pain appears at night. Those symptoms are also more closely aligned with the higher-risk patients that current guidelines prioritize for limb-saving evaluation and treatment.

Nonhealing foot wounds, gangrene, black or blue toes, rest pain (especially at night), and wounds associated with diabetes or prior circulation problems are among the most concerning warning signs. These patterns may reflect chronic limb-threatening ischemia and generally warrant prompt specialized evaluation.

You may be advised to seek prompt medical care or a specialized circulation evaluation. In some patients, timely recognition of reduced blood flow can affect wound healing, pain relief, and limb preservation.

Yes. Wound care and podiatric care are important parts of treatment, but current diabetic foot guidance emphasizes that poor perfusion should be assessed when ulcers or gangrene are present — since blood-flow problems can directly affect the likelihood of healing. A vascular evaluation is a separate and complementary step.

Not always. Some patients with severe disease present instead with nonhealing wounds, rest pain, or tissue loss rather than classic exertional claudication. The absence of walking pain does not rule out PAD, especially in patients with diabetes-related neuropathy who may not feel the usual symptoms.

Because gangrene and tissue loss may indicate severe ischemia and active limb threat. These findings require urgent medical attention — not a scheduled follow-up. Every hour matters when tissue is dying from lack of blood flow.

Atherectomy is a minimally invasive endovascular procedure that removes plaque from inside a blocked or narrowed artery to restore blood flow. It is performed through a small catheter, without open surgery, and is one of several options used in revascularization. Whether atherectomy, angioplasty, stenting, or another approach is appropriate depends on your anatomy, the location and severity of disease, and your overall clinical picture — which is determined by a vascular specialist during evaluation.

Wound care focuses on the wound itself — dressings, offloading, debridement, infection treatment, and promoting the wound environment for healing. Vascular care focuses on the blood supply to the wound — evaluating and restoring arterial circulation so the tissue receives enough oxygen and nutrients to heal. Both are often needed together for patients with circulation-related wounds.

Warning signs that suggest a vascular evaluation may be needed include: a wound that has not improved after several weeks of care, darkening or color change in the toes or foot, pain in the foot at rest or at night, a history of diabetes or prior circulation problems, and prior toe amputations or circulation procedures. Use the circulation risk assessment to better understand whether your symptoms match these higher-risk patterns.

If you are already under vascular care, this website’s resources may still be useful for understanding your condition and the role of circulation in healing. You can share assessment results with your care team. If you have active concerns about your wound or symptoms, communicate directly with your specialist.

If you have black tissue, rapidly worsening pain, spreading infection, sudden coldness of the foot, or any other urgent symptoms, seek immediate medical attention. Go to an emergency room or urgent care, or call 911. Do not use this website for emergencies.