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Learning About Peripheral Arterial Disease of the Legs

Leg artery narrowed by plaque

What is peripheral arterial disease?

Peripheral arterial disease (PAD) is narrowing or blockage of arteries in your arms and legs.

The most common cause of PAD is the buildup of plaque on the inside of arteries. Plaque is made of extra cholesterol, calcium, and other material in your blood. Over time, plaque builds up along the inner walls of the arteries, including those that supply blood to your legs. This buildup leads to poor blood flow.

This information focuses on peripheral arterial disease of the legs, the area where it is most common.

When you have PAD of the legs and you walk or exercise, your leg muscles may not get enough blood. This may cause symptoms, such as leg pain during exercise.

Peripheral arterial disease is also called peripheral vascular disease.

What are the symptoms?

Many people who have PAD do not have any symptoms. But if you have symptoms, you may have weak or tired legs, difficulty walking or balancing, or pain. If you have pain, you might feel a tight, aching, or squeezing pain in the calf, thigh, or buttock. This pain usually happens after you have walked a certain distance. The pain goes away if you stop walking. This pain is called intermittent claudication.

If PAD gets worse, you may have other symptoms that are caused by poor blood flow to your legs and feet. You may have:

  • Cold or numb feet or toes.
  • Sores that are slow to heal.
  • Leg or foot pain while you are at rest.
  • Feet and toes that become pale from exercise or when elevated.
  • Feet that turn red when dangled.
  • Blue or purple marks on your legs, feet, or toes.

How can you prevent PAD?

  • Quit smoking. Quitting smoking is one of the best things you can do to help prevent PAD. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These can increase your chances of quitting for good.
  • Stay at a healthy weight.
  • Manage other health problems, including diabetes, high blood pressure, and high cholesterol.
  • Be physically active. Try to do moderate to vigorous activity at least 2½ hours a week. You may want to walk or try other activities, such as running, swimming, cycling, or playing tennis or team sports.
  • Eat a variety of heart-healthy foods.
    • Eat fruits, vegetables, whole grains, beans, and other high-fibre foods.
    • Eat lean proteins, such as seafood, lean meats, beans, nuts, and soy products.
    • Eat healthy fats, such as canola and olive oil.
    • Choose foods that are low in saturated fat and avoid trans fat.
    • Limit sodium and alcohol.
    • Limit drinks and foods with added sugar.

How is PAD treated?

Your doctor may suggest ways to relieve symptoms and lower your risk of heart attack and stroke. These may include:

  • Quitting smoking. It's one of the most important things you can do. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These can increase your chances of quitting for good.
  • Eating heart-healthy foods.
  • Staying at a healthy weight. Lose weight if you need to.
  • Regular exercise (if your doctor says it's safe). Try walking, swimming, or biking for at least 30 minutes on most, if not all, days of the week. If you have leg symptoms when you exercise, your doctor might recommenda specialized exercise program that may relieve symptoms. The goal is to be able to walk farther without pain.
  • Medicines that help manage other problems such as high blood pressure and high cholesterol.
  • Medicine, such as aspirin, that prevents blood clots which could cause a heart attack or stroke.
  • Procedures, such as opening narrowed or blocked arteries (angioplasty) or using healthy blood vessels to create detours around narrowed or blocked arteries (bypass surgery).

Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.

Where can you learn more?

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