Leg pain that shows up during a walk and fades once you sit down is easy to write off as normal aging, being out of shape, or arthritis. Sometimes it’s none of those things — it’s peripheral artery disease, a circulation problem that affects an estimated 8 to 10 million people in the US, most over 65, and roughly 1 in 5 adults over 55. It’s also widely underdiagnosed, in part because the symptoms are so easy to dismiss.
Key Takeaways
- Peripheral artery disease (PAD) happens when fatty plaque narrows the arteries carrying blood to your limbs, usually the legs — the same process that causes heart attacks, just playing out somewhere else in the body.
- The most common symptom is leg pain, cramping, or fatigue during activity that goes away with rest, called claudication.
- PAD is a warning sign for the rest of your cardiovascular system, not just your legs — people with PAD face a higher risk of heart attack and stroke.
- Many people with PAD have mild symptoms or none at all, which is part of why it’s often caught late.
1. Leg Pain or Cramping During Activity That Eases With Rest
This is the hallmark symptom, called claudication — an aching, burning, cramping, or fatigued feeling in the hips, thighs, or calves that shows up during walking or climbing stairs and fades within a few minutes of stopping. It happens because narrowed arteries can’t deliver enough blood to keep up with your muscles’ demand during activity. Calf pain is the most common location, and severity ranges from mild discomfort to pain severe enough to limit how far someone can comfortably walk.
2. Leg Numbness or Weakness
A sense of heaviness, weakness, or numbness in the leg — separate from the cramping pain of claudication — can also signal reduced blood flow, and it’s often overlooked or attributed to sitting wrong or general fatigue.
3. One Leg or Foot Feels Noticeably Colder Than the Other
Because PAD often affects one limb more than the other, a temperature difference between your two legs or feet is a meaningful clue worth paying attention to, especially if it’s a new or persistent change rather than something that happens occasionally with cold weather.
4. Sores on the Feet or Legs That Won’t Heal
Slow-healing or non-healing sores, particularly on the toes or feet, happen because reduced blood flow makes it harder for tissue to repair itself. This is one of the more serious signs of PAD, since untreated wounds in this setting carry a real risk of infection and, in advanced cases, can threaten the limb itself.
5. A Change in Skin Color on Your Legs
Look for skin that’s turned pale, bluish, or unusually dark compared to the rest of your body — a sign that tissue further from the heart isn’t getting adequate oxygenated blood.
6. Shiny Skin or Hair Loss on the Legs and Feet
Reduced circulation over time can change how skin and hair grow. Some people notice their lower legs or feet develop an unusually smooth, shiny appearance, or that hair growth on the legs slows or stops altogether — subtle changes that are easy to miss unless you’re specifically looking for them.
7. A Weak or Absent Pulse in the Foot
A healthcare provider can check for this directly, but it’s worth mentioning if you notice you can’t easily feel a pulse in your foot or ankle yourself, since a diminished pulse in the lower leg is one of the classic clinical signs doctors look for when evaluating PAD.
Why This Isn’t Just About Your Legs
PAD and heart disease share the same root cause — atherosclerosis, the buildup of fatty plaque inside artery walls — so having PAD is a signal that this process is likely happening elsewhere in your body too, including the arteries feeding your heart and brain. “It can occur in the arms and the legs for peripheral arterial disease, but it’s the same disease process that occurs in the neck arteries that can cause strokes, the heart that can cause heart attacks,” Dr. Aaron Leithead explained to the American Medical Association. Most people with PAD have vascular disease in more than one part of the body, which raises their risk for serious complications beyond leg symptoms alone.
What to Do If This Sounds Familiar
Because PAD symptoms are so easy to mistake for normal aging or general soreness, doctors emphasize that persistent or recurring leg pain during activity is worth mentioning at your next appointment rather than working around it. PAD is diagnosed with a simple, painless test called an ankle-brachial index, which compares blood pressure in your ankle to your arm. The encouraging news: PAD is treatable, and one of the most effective things you can do is stay physically active — supervised walking programs are a first-line treatment, alongside quitting smoking, managing cholesterol and blood pressure, and in some cases medication or a procedure to restore blood flow. Catching it early gives doctors the best chance to limit disease progression and address the broader cardiovascular risk it signals.
Sources: Mayo Clinic, “Peripheral artery disease (PAD) – Symptoms and causes”; American Heart Association, “What Are the Symptoms of PAD?”; American Medical Association, “What doctors want patients to know about peripheral artery disease”; Mayo Clinic News Network, “Peripheral artery disease can signal cardiovascular trouble for heart, brain and legs.”