The best-known symptom of peripheral artery disease is leg pain on walking. The most common presentation is nothing at all. Both of those facts matter, and the second one is why this page exists.
The symptoms that need attention now
- Sudden coldness, pallor, mottling, numbness, weakness or severe pain in a leg or foot, over minutes to hours — call 911. Blood supply can be cut off abruptly and the window to save tissue is short.
- Pain in the forefoot or toes at rest, worse lying flat, relieved by hanging the foot down — see someone within a day or two.
- A wound on the foot that is not healing, or a dark or black patch on a toe or heel — same.
Claudication: the classic pattern
Cramping, aching, tightness or fatigue in the calf, thigh or buttock that:
- comes on after walking a fairly consistent distance,
- eases within a few minutes of standing still — you do not need to sit down,
- and returns at roughly the same distance the next time.
The reproducibility is what distinguishes it. Muscle strains do not behave like that, and neither does most back-related leg pain. Which muscle group hurts also says something about where the narrowing is: calf pain suggests disease in the thigh arteries, thigh and buttock pain suggests disease higher up in the pelvis.
A useful detail for the appointment: walking uphill or fast brings it on sooner. If that is true for you, say so — it strengthens the arterial picture.
The symptoms people do not connect to circulation
- Legs that tire quickly, put down to age or being unfit. People often stop walking as far and never notice they are avoiding the symptom.
- A persistently cold foot, or one foot colder than the other.
- Hair loss on the lower leg and foot, shiny or thin skin, thickened slow-growing toenails.
- A blister, crack or small cut that takes weeks rather than days.
- Color changes: pale when the leg is raised, dusky red or purplish when it hangs down.
- Muscle wasting in the calf.
- Erectile dysfunction, which can accompany disease in the pelvic arteries.
Why so many people have no symptoms
Partly because narrowing has to be fairly advanced before it limits supply at ordinary walking speeds, and partly because people unconsciously slow down or walk less. In diabetes there is a third reason: nerve damage removes the pain that would otherwise signal the problem. A silent PAD diagnosis still matters — it marks substantially raised risk of heart attack and stroke, and that risk is treatable.
Rest pain and tissue loss
When narrowing becomes severe enough that supply is inadequate even at rest, the picture changes. Rest pain is typically in the forefoot and toes, worse at night and lying flat, and eased by dependency — hanging the foot out of bed, or sleeping in a chair. It is often described as severe, and it frequently coexists with skin breakdown.
Rest pain, an ulcer that will not heal, or gangrene together represent a limb that is threatened. This is urgent, not routine, and the management involves restoring blood flow rather than dressings alone.
What to bring to the appointment
- The walking distance that reliably brings it on, and how long relief takes.
- Whether it is one leg or both, and whether one is worse.
- Whether elevation helps or hurts.
- Any wound, blister or color change, however small — photograph it if it might look different by the appointment.
- Your smoking history, diabetes status, and your medicine list.
Common questions
How far can someone with PAD usually walk?
It varies enormously, from a couple of city blocks to a few hundred feet, and the number matters less than whether it is changing. A distance that has shortened noticeably over weeks or months is worth reporting, and so is a distance that suddenly collapses.
Could my leg pain be my back instead?
It could. Spinal stenosis produces leg pain on walking too, but it typically needs sitting or leaning forward for relief rather than simply standing still, it varies more from day to day, and it often improves walking uphill or pushing a shopping cart. Arterial pain is more reproducible. The two can also coexist, which is why the ABI is useful — it answers one of the two questions definitively.
Are cold feet enough to suggest PAD?
On their own, no. Cold feet are extremely common in people with normal arteries. Cold feet plus weak pulses, plus skin or nail changes, plus pain on walking is a different matter, and any wound in a cold foot deserves a check regardless.
I have no pain but I am worried. Should I be tested?
Worth discussing with your clinician, particularly if you smoke or have smoked, have diabetes or kidney disease, are over 65, or have known heart or carotid disease. The test is quick, non-invasive, and a positive result changes medical treatment in ways that reduce heart attack and stroke risk — so it is useful even when the legs feel fine.
Where to go next
Sources
- National Heart, Lung, and Blood Institute. PAD — Symptoms.
- American College of Cardiology. 2024 Lower Extremity PAD Guideline.
- Society for Vascular Surgery. Acute Limb Ischemia.
- MedlinePlus. Peripheral Arterial Disease.
Written by Tom Biernacki, DPM, FACFAS. Published 20 September 2026. General education, not medical advice.