Medically reviewed by Nachiket J. Patel, MD, FACC, FSCAI. Last reviewed July 2026.
A leg or foot wound that does not heal is not simply a skin problem. Healing depends on arterial blood flow, control of venous pressure, nerve function, infection treatment, nutrition, and protection from repeated pressure.
Arterial and venous wounds often look and behave differently, but mixed disease is common. Compression can help a venous ulcer and harm a severely ischemic foot, which is why circulation should be assessed first.
Flow Heart & Vascular focuses on the heart and circulation component of wound healing and coordinates with wound-care, podiatry, surgery, infectious-disease, or diabetes teams when needed.
What are signs of an arterial wound?
Arterial wounds often occur on toes, the foot, or pressure points. The foot may be cool, pulses weak, and pain worse with elevation or at night. The wound may look dry or sharply edged.
Diabetes and neuropathy can blunt pain, so the absence of severe discomfort does not guarantee adequate blood flow.
What are signs of a venous wound?
Venous ulcers commonly develop near the inner ankle. The surrounding leg may be swollen, discolored, itchy, or firm, and the wound may drain more than an arterial wound.
Venous pressure can come from superficial reflux, prior DVT damage, or a deeper outflow obstruction. Identifying the level of disease guides compression and procedural options.
When is a wound an emergency?
Seek urgent care for spreading redness, fever, foul drainage, rapidly increasing pain, black tissue, new confusion, or a foot that suddenly becomes cold, pale, blue, numb, or weak.
A diabetic foot infection or acute loss of arterial flow can progress quickly. Do not wait for a routine appointment when the limb or the patient’s general health appears threatened.
How is circulation evaluated?
The examination includes pulses, temperature, color, capillary refill, swelling, sensation, wound location, and skin changes. Photographs and measurements can track progress.
Testing may include an ankle-brachial index, toe pressures, arterial duplex ultrasound, venous reflux or DVT ultrasound, and selected CT or catheter angiography. Toe testing can be particularly useful when ankle arteries are difficult to compress.
The goal is to determine whether blood delivery, venous pressure, or both are limiting healing.
How is a circulation-related wound treated?
Arterial treatment may include risk-factor management and, when poor flow is materially limiting healing, angioplasty, stenting, atherectomy, or surgical bypass. The anatomy and likelihood of wound benefit guide the choice.
Venous treatment may include appropriately selected compression, elevation, walking, ablation of refluxing superficial veins, or treatment of a significant deep venous obstruction.
Debridement, infection care, pressure offloading, glucose management, nutrition, and local wound dressings remain essential. Revascularization is not a substitute for those parts of care.
What to bring to the evaluation
Bring prior arterial and venous reports, wound-care notes, a medication list, diabetes information, and a timeline of how the wound began and changed. If available, bring the actual imaging rather than the report alone.
Continue prescribed wound care unless the treating team gives new instructions. Avoid tight home-applied wraps when arterial circulation is uncertain.
Frequently asked questions
How long is too long for a wound to remain open?
Any wound that is not clearly improving, or that occurs in a person with diabetes or vascular disease, deserves timely professional assessment.
Can normal-looking skin hide poor circulation?
Yes. Early PAD may not cause dramatic color change, and neuropathy can mask pain. Objective testing can clarify blood flow.
Does opening an artery guarantee healing?
No. Better blood flow may be necessary, but infection control, offloading, nutrition, glucose management, and local wound care also determine healing.
Related heart and vascular information
- Peripheral Artery Disease (PAD)
- Vascular Ultrasound Testing (Arterial, Venous, Carotid)
- Peripheral Angiography & Angioplasty
Schedule an appointment
If you have a stable heart or circulation concern, request an appointment with Flow Heart & Vascular in Mesa, Arizona. Call 911 for emergency symptoms.
This page provides general education and does not replace individualized medical advice.
