Peripheral artery disease (PAD)

What is peripheral artery disease (PAD)?

Peripheral artery disease (PAD) occurs when the arteries that carry blood to your legs, abdomen and arms become narrowed, reducing blood flow. The narrowing occurs when plaque, a fatty substance, builds up inside these arteries.

Many people with peripheral artery disease (also called peripheral arterial disease or peripheral vascular disease) have discomfort or pain when walking, called claudication. The reduced blood flow may damage skin, muscle and other tissues. In severe cases, blood clots or other problems can block arteries completely and even cause limb loss. Treatment can prevent these outcomes.

What are typical symptoms of peripheral artery disease?

Early peripheral artery disease symptoms are often mild. But if you have symptoms, you should see a Penn Medicine physician, especially if you have risk factors for peripheral artery disease. Left untreated, peripheral artery disease can lead to increasing discomfort and serious health problems.

Symptoms of peripheral artery disease include:

  • Calf, hip or thigh cramp after walking, climbing stairs or exercising
  • Erectile dysfunction, especially if you have diabetes
  • Reduced toenail growth or hair growth on your legs
  • Sensation of cold in your foot or lower leg
  • Skin color change on your legs
  • Sores that are slow to heal on your legs, feet or toes
  • Weak or numb leg

Peripheral artery disease causes

Peripheral artery disease results when you have atherosclerosis or hardening of the arteries due to plaque buildup. Risk factors for peripheral artery disease include:

  • Diabetes mellitus
  • High blood pressure or high cholesterol
  • Inactive lifestyle
  • Kidney failure
  • Male sex
  • Obesity
  • Smoking
  • Family history of vascular problems

How is peripheral artery disease diagnosed?

The first step in diagnosing peripheral artery disease is a physical exam. We’ll talk with you about your symptoms and your lifestyle. We may also order blood tests to check your cholesterol, triglycerides and blood sugar.

Your doctor may order imaging tests to understand the blood flow to your extremities. You may have testing in your doctor’s office or in our renowned vascular testing and diagnosis labs. Your testing may include:

  • Ankle-brachial index: compares the blood pressure in your arms and legs
  • CT angiography (CTA): provides detailed cross-section images of arteries, using a contrast material (dye) and a series of X-rays
  • Duplex ultrasound: shows the artery in imaging created by sound waves and measures blood flow to reveal a potential blockage
  • MR angiography (MRA): uses a strong magnetic field instead of X-rays to show clear cross-sections of your arteries
  • Peripheral angiogram: minimally invasive test provides doctors a direct view of blockages using a camera mounted on a catheter (long, narrow tube inserted into the artery)

Peripheral artery disease treatment at Penn Medicine

The goal of peripheral artery disease treatment is to reopen clogged or blocked arteries to restore blood flow. Penn Medicine provides nonsurgical, minimally invasive and surgical treatments for peripheral artery disease.

Related specialties

Patient stories

Tool measures tumor growth for less uncertainty between scans

Neuroradiologists have developed the first-ever tool that gives a real-time assessment of an individual’s tumor, and relieves anxiety between scans.

A hole in the heart repaired

After a heart attack, Vilma Patel's family brought her from India to Lancaster for lifesaving VSD repair.

Heart health keeps this Penn cardiology patient running

An avid runner, once sidelined by heart issues, turned to Penn’s Sports Cardiology and Fitness Program to get him back on the race track.

New lungs, a new liver, and a new lease on life

Decades after a childhood diagnosis of cystic fibrosis, Donald traveled across the world to find transplant care he could trust at Penn Medicine.

Epilepsy surgery gives patient a new lease on life

Minimally invasive laser interstitial thermal therapy (LITT) surgery reduced the epilepsy symptoms a patient had experienced for more than 30 years.

Home-assisted ventilation for autoimmune disease: Kim’s story

A rare autoimmune disease kept Kim Day from his favorite outdoor hobbies, until he met doctors in the Fishman Program for Home Assisted Ventilation.

ECMO saves recovering cancer survivor from lung failure

From cancer survivor to lung failure, Joey Porch’s journey took a miraculous turn with the help of the Penn Lung Rescue team

The road to recovery begins at home

Penn Medicine’s SNF at Home pilot program offers a seamless transition from the hospital to home with extra support to recover in familiar surroundings.

How home care connects real-life settings to patients’ healing

At-home care means helping people within their real environment, a personalized approach to care in the local community.

Embracing life’s rhythm: Kathleen’s robotic surgery journey

Kathleen Tierney talks about her journey having robotic mitral valve surgery performed at Penn Medicine.

Schedule an appointment

We can help you schedule an appointment or you can search our directory of specialists.