Peripheral artery disease (PAD) — also called peripheral arterial disease — is a common circulatory issue in which arteries that carry blood to the upper or lower extremities become narrowed. This reduces blood flow and can have different manifestations that range from muscle pain with activity to non-healing wounds and gangrene.
The most common cause is atherosclerosis, a buildup of fatty deposits (plaque) inside the arteries. Over time, plaque makes arteries narrower and less flexible.
PAD is not just a leg problem. It is also a sign of poor circulation elsewhere in the body, such as the heart and the neck, and is linked to a higher risk of heart attack and stroke. PAD often shows up in everyday moments, like needing to stop and rest due to pain during a short walk or struggling to keep up with routine activities.
This article will discuss the common symptoms of PAD, how it is diagnosed using tests like the ankle-brachial index and the most effective treatment options to improve circulation and quality of life and reduce amputation risk.
Peripheral Artery Disease (PAD): Quick Facts
- What is PAD? A condition where narrowed or blocked leg arteries reduce blood flow
- Prevalence: Present in more than 12 million Americans and 200 million individuals worldwide
- Main cause: Atherosclerosis (plaque buildup)
- Most common symptom: Leg pain when walking (claudication)
- Most severe symptoms: foot pain at rest, non-healing foot wounds or toe gangrene.
- Key test: Ankle-brachial index (ABI)
- Why it matters: Raises risk of heart attack, stroke and amputation.
What Are the Symptoms of Peripheral Artery Disease (PAD)?
Some people with PAD have no symptoms. Others notice signs that develop gradually.
Common Symptoms
- Leg pain when walking (claudication)
- Cramping, tightness or heaviness in the calf, thigh or buttock
- Pain in the toes at rest
- Toe discoloration
- Slow-healing sores on the toes or feet
- Toe gangrene
- Shiny skin or reduced hair growth
- Weak or hard-to-feel or absent peripheral pulses
What is Claudication?
Claudication is reproducible muscle pain that starts during walking and improves with rest. It typically involves the calf muscle but can also involve the thigh and buttock muscles. It is a key sign of reduced blood flow and a common symptom of PAD.
What Causes Peripheral Artery Disease?
The main cause of PAD is atherosclerosis, which limits blood flow as plaque builds up in the arteries over time.
Risk Factors for PAD
You may be more likely to develop PAD if you have:
- A history of smoking
- Diabetes
- High blood pressure
- High cholesterol
- Age over 50
- A family history of heart or vascular disease
- Obesity
- A history of heart attack or stroke
- Ethnicity (African American and Hispanic individuals are more at risk)
How Do Doctors Diagnose Peripheral Artery Disease?
Doctors begin with a medical history and physical exam, including checking peripheral pulses and examining the legs and feet.
Ankle-Brachial Index (ABI)
The most common test to diagnose PAD is the ankle-brachial index (ABI). It compares blood pressure in your ankle and your arm to show how well blood is flowing to your legs. If the pressure is lower in the ankle, it may be a sign of reduced blood flow.
The test is quick, painless and usually done in a doctor’s office. Your vascular surgeon may use additional imaging tests as needed.
Why Early Detection Matters
PAD often develops slowly, and early symptoms can be mild or easy to miss. Some people may not notice changes at first, or may assume their symptoms are simply due to aging or being less active. However, identifying PAD early allows treatment to start before more serious problems develop.
- Early diagnosis and treatment can help:
- Improve walking ability
- Reduce leg pain
- Prevent wounds and infections
- Slow disease progression
- Prevent amputation
- Lower the risk of heart attack and stroke
When PAD goes untreated, reduced blood flow can gradually worsen. Over time, this may lead to continuous pain rest, slow-healing wounds, infections and, in more advanced cases, tissue damage and amputation.
PAD Treatment Options
Peripheral artery disease can be treated, and in many cases, symptoms can be significantly improved. The goal of treatment is to improve blood flow to the legs, reduce symptoms like pain with walking and lower the risk of serious complications such as heart attack, stroke or limb loss. Most people benefit from a combination of lifestyle changes, medications and, in some cases, procedures.
Lifestyle Changes
For many people, the first step in treating PAD is improving daily habits. These changes help slow disease progression and support better circulation over time.
- Quit smoking: Smoking is one of the strongest risk factors for PAD and directly worsens blood vessel damage.
- Stay active: Regular walking is one of the most effective ways to improve circulation and reduce symptoms of claudication.
- Eat a heart-healthy diet: Focus on fruits, vegetables, whole grains, lean proteins and healthy fats.
- Manage chronic conditions: Keeping blood pressure, cholesterol and diabetes under control is essential to protecting your arteries.
Even small, consistent changes can make a meaningful difference in symptoms and long-term vascular health.
Medications
Medications are often used alongside lifestyle changes to improve circulation and reduce cardiovascular risk. Depending on your condition, your doctor may prescribe medicines to:
- Lower cholesterol and slow plaque buildup in the arteries
- Control blood pressure and reduce strain on blood vessels
- Prevent blood clots that could further limit blood flow
- Improve walking symptoms related to claudication
These medications do not “cure” PAD, but they can play an important role in managing symptoms and reducing complications.
Procedures and Surgery
If PAD becomes more advanced or symptoms significantly affect quality of life, procedures may be recommended to restore blood flow. Procedures are typically minimally invasive and done on an outpatient basis.
- Angioplasty: A small balloon is used to open narrowed arteries and improve circulation
- Stenting: A small mesh tube is placed in the artery to help keep it open after angioplasty
- Bypass surgery: Blood flow is rerouted around a blocked artery using a graft
These treatments are typically considered when symptoms persist despite lifestyle changes and medication, or when blood flow is severely reduced.
Treatment Planning
The right treatment plan depends on the severity of PAD, overall health and individual risk factors. Your vascular surgeon can help determine the most appropriate approach and adjust treatment over time as needed.
When Should You See a Doctor?
Talk to a healthcare provider if you have:
- Leg pain when walking
- Slower walking due to cramping or fatigue
- Pain in your feet at rest
- Foot or toe wounds that are slow to heal
- Foot or toe gangrene
- Risk factors such as smoking, diabetes or high blood pressure
Seek urgent care if you notice:
- A foot that suddenly becomes pale, cold or numb
- Severe leg or foot pain at rest
- A wound that turns dark or shows signs of infection
- Foot or toe gangrene
Frequently Asked Questions About PAD
Is peripheral artery disease serious?
Yes. PAD can limit blood flow to the legs and is also a warning sign of cardiovascular disease. Without treatment, it can increase the risk of heart attack, stroke and amputation.
Can PAD go away on its own?
PAD does not go away on its own, but it can be managed. Treatment can improve symptoms and slow progression.
What does PAD pain feel like?
PAD pain, called claudication, is often described as cramping, tightness or heaviness in the legs during walking. It usually improves with rest. In advanced situations, pain involving the foot and toes is always present at rest and prevents people from sleeping.
Who should be screened for PAD?
People over age 50 or those with risk factors like smoking, diabetes or high blood pressure should ask their doctor about screening, including the ankle-brachial index. People with a family history of PAD.
Peripheral artery disease may begin with subtle signs, such as leg pain during walking or wounds that heal slowly. These symptoms are easy to overlook but may point to a larger issue with circulation.
PAD is treatable, and early care can improve mobility, quality of life and prevent amputation. If you notice symptoms or have risk factors, talk with a vascular surgeon about screening and treatment options.
