Walking Pain in Your Legs Isn’t Normal Aging: A Texas Cardiologist Explains Peripheral Artery Disease

Roughly 1 in 5 adults over the age of 65 has peripheral artery disease, and the majority of them have no idea. Most assume the cramping in their calves when they walk to the mailbox, the strange coldness in one foot at night, or the small cut on the ankle that hasn’t healed in two months are all just signs of “getting older.” They are not. They are signs that the same plaque buildup that causes heart attacks is quietly blocking blood flow in the arteries of the legs.

Peripheral artery disease, or PAD, is one of the most consistently missed cardiovascular diagnoses in primary care. It is also one of the most treatable when caught early, and one of the most devastating when caught late. Among patients who progress to critical limb ischemia, the five-year amputation rate exceeds 25 percent. The good news: a single five-minute test in a cardiologist’s office can catch the disease decades before that becomes a possibility.

The four warning signs patients almost always dismiss

The classic PAD symptom is called intermittent claudication. In plain language, that means cramping, aching, or burning in the calves, thighs, or buttocks that comes on after walking a predictable distance and goes away within a few minutes of standing still. Patients describe it as a charley horse that arrives on a schedule. Most chalk it up to age, arthritis, or being out of shape.

The second sign is temperature asymmetry. One foot reliably feels colder than the other, often dramatically so. Patients sometimes notice it most in bed at night when they pull the covers off briefly.

The third sign is the slow-healing wound. A cut on the shin from gardening, a blister from a new shoe, or a scrape from a coffee table that should have healed in a week stays open for a month or longer. Compromised arterial blood flow means tissue cannot get the oxygen and nutrients it needs to repair itself.

The fourth and most subtle sign is color change. Hair loss on the toes, shiny skin on the lower leg, or a bluish-purple discoloration when the leg is dependent are all visible clues that arterial supply is impaired.

Why PAD is really a whole-body problem

It is important to understand what PAD actually is. The arteries in the legs are not somehow separate from the arteries in the heart and brain. They are part of the same vascular tree, and they are subject to the same disease process: atherosclerosis. Patients with PAD have a two-to-three times higher risk of heart attack and a similarly elevated risk of stroke. In other words, a PAD diagnosis is a warning siren for the rest of the cardiovascular system.

This is exactly why patients with leg symptoms should be seen by a cardiologist or vascular specialist, not just a podiatrist or orthopedist. The legs are the messenger. The heart and the carotid arteries are usually the bigger story.

The five-minute test that catches it

The diagnostic workhorse for PAD is the ankle-brachial index, or ABI. It is performed in the office, requires no preparation, no needles, and no radiation. A blood pressure cuff is placed on each arm and each ankle. The systolic blood pressure measured at each ankle is divided by the systolic blood pressure measured at the higher of the two arms. A normal ratio is between 0.9 and 1.4. A ratio below 0.9 confirms PAD.

For patients with significant risk factors, a normal resting ABI does not always rule out the disease. In those cases an exercise ABI, performed on a treadmill, can unmask milder disease that only manifests under demand. Arterial Doppler studies of the legs add a more detailed picture of where the blockages actually are.

What treatment looks like in 2026

Modern PAD treatment is dramatically less invasive than what patients picture. The first line is medical: aggressive control of blood pressure, cholesterol, and blood sugar, daily aspirin or other antiplatelet therapy, a supervised walking program, and absolutely strict smoking cessation. For many patients with mild to moderate PAD, this alone restores function and stabilizes the disease.

For patients with more severe blockages or non-healing wounds, minimally invasive endovascular procedures have largely replaced open bypass surgery. A small catheter is introduced through the groin or wrist, threaded into the affected leg artery, and used to inflate a balloon, deploy a stent, or remove plaque directly. Patients are typically home the same day or the next morning.

Why Texas patients are at especially high risk

Texas has one of the highest rates of diabetes in the country, and diabetes is the single strongest risk factor for PAD progression to amputation. Add to that the prevalence of smoking in older Texas demographics and the tendency to attribute leg pain to summer dehydration or heat, and you have a setting in which PAD frequently goes undetected until it is severe.

For patients in Montgomery County, Walker County, and the greater North Houston area, the screening threshold should be low. Anyone over 50 with diabetes, anyone over 65 in general, and anyone of any age with the four warning signs above deserves an ABI test.

When to see a specialist

If you have noticed cramping in your legs while walking, persistent coldness in one foot, a wound that will not heal, or visible color changes in the skin of your lower legs, do not wait until your next annual physical. A PAD specialist in Conroe TX can perform an ankle-brachial index test in a single short visit and have you out the door with a clear answer the same day.

Peripheral artery disease is a quiet condition. It is also a treatable one. The patients who do best are the ones who took their leg symptoms seriously the first time something felt off.