Peripheral artery disease (PAD) is a common condition that affects blood flow to the legs and feet. It develops when the arteries that carry oxygen-rich blood from the heart become narrowed or blocked. This usually happens because fatty deposits, cholesterol and calcium build up along the artery walls over time. This buildup, called atherosclerosis, makes it harder for blood to move freely and limits the oxygen reaching the muscles and tissues in the legs.

When blood flow is reduced, symptoms often show up during activity, when the leg muscles need more oxygen. It’s why many people with PAD experience leg pain, cramping or tiredness while walking or exercising that improves with rest. As the condition worsens and circulation continues to decrease, these symptoms can occur more often, last longer or become more intense.

While PAD mainly affects the legs, it is closely connected to overall heart and blood vessel health. The same narrowing of the arteries can also affect blood flow to the heart and brain, making early diagnosis key. This allows treatment to start sooner, helping restore circulation, slow disease progression and lower the risk of complications.

What Are the Types of Peripheral Artery Disease?

Peripheral artery disease does not have different “types” in the usual sense. Instead, it is described in stages that show how severe the disease is and how much blood flow has been reduced. These stages reflect how PAD progresses over time and help guide treatment decisions.

Asymptomatic PAD

In the earliest stage of PAD, blood flow is reduced, but there are no noticeable symptoms. Many people do not realize they have the condition. Even without symptoms, the arteries are already narrowed, and the risk of heart attack and stroke is higher. Asymptomatic PAD is often found during routine checkups or testing for other heart or vascular conditions.

Intermittent Claudication

Intermittent claudication is the most common stage of PAD. It causes leg pain, cramping or tiredness during walking or physical activity that improves with rest. These symptoms happen because the leg muscles are not getting enough oxygen-rich blood when they are active. While not an emergency, claudication can limit mobility and daily activities if it is not treated.

Chronic Limb-Threatening Ischemia (CLTI)

Chronic limb-threatening ischemia is a serious, advanced stage of PAD. Blood flow to the legs or feet is severely reduced, which can cause ongoing pain even when resting. Other signs may include slow-healing wounds, ulcers, changes in skin color or tissue damage. Without prompt treatment, CLTI can lead to infection, gangrene and possible limb loss.

Acute Limb Ischemia

Acute limb ischemia is a sudden and severe loss of blood flow, usually caused by a blood clot. It is a medical emergency. Symptoms can include sudden pain, numbness, coldness, pale skin or trouble moving the affected limb. Immediate treatment is needed to restore blood flow and prevent permanent tissue damage or amputation.

What Are the Causes and Risk Factors of Peripheral Artery Disease?

Peripheral artery disease usually develops gradually over time and is closely linked to damage within the blood vessels. Understanding the causes and risk factors of PAD can help with early detection and prevention.

Underlying Causes

The primary cause of PAD is atherosclerosis, a condition in which plaque builds up inside the arteries and restricts blood flow. Factors that contribute to this process include:

• Smoking, which damages artery walls and accelerates plaque buildup
• Poor diet, especially those high in saturated fats and processed foods
• Inadequate physical activity, which can worsen circulation
• High blood pressure, which places stress on the arteries
• High cholesterol, which contributes to fatty deposits inside blood vessels

As arteries become increasingly narrowed, blood flow to the limbs decreases. Symptoms are often mild at first and tend to worsen over time, with the legs most often affected first.

Risk Factors

Several factors increase the likelihood of developing peripheral artery disease, including:

• Older age, particularly after age 50
• Current or past tobacco use
• Poor diet and limited physical activity
• High blood pressure or high cholesterol
• Diabetes, which damages blood vessels over time
• Obesity or metabolic conditions

People with multiple risk factors are more likely to develop PAD and experience more severe symptoms. A family history of PAD, atherosclerosis or early-onset cardiovascular disease can also increase risk.

What Are the Symptoms and Warning Signs of Peripheral Artery Disease?

The most common peripheral artery disease symptoms affect the legs and become noticeable during physical activity or as circulation continues to decline. Common signs include:

• Muscle pain or cramping in the legs during walking or exercise
• Older age, particularly after age 50
• Current or past tobacco use
• Poor diet and limited physical activity
• High blood pressure or high cholesterol
• Diabetes, which damages blood vessels over time
• Obesity or metabolic conditions

Symptoms Based on Disease Severity

Symptoms of peripheral artery disease also vary depending on how advanced the disease is. For instance:

• Mild PAD – No symptoms or mild discomfort during activity
• Moderate PAD – Intermittent claudication that improves with rest
• Severe PAD – Persistent pain at rest, non-healing wounds, ulcers or skin discoloration

Some people have asymptomatic PAD. This means they have reduced blood flow without noticeable symptoms. As a result, routine screening is important for those at higher risk.

When to See a Doctor

You should speak with a doctor if you experience leg pain during walking, ongoing numbness, skin changes or wounds on the legs or feet that do not heal. Seek immediate medical attention if you experience sudden leg pain, loss of sensation, a cold or pale limb, fainting, severe chest pain or signs of stroke. These may indicate a medical emergency requiring urgent care.

Diagnosis & Tests for Peripheral Artery Disease

Accurate diagnosis is essential for confirming PAD, assessing severity and guiding treatment.

Initial Evaluation and Medical History

The diagnostic process for PAD typically begins with a detailed medical history and physical exam. A healthcare provider will review symptoms such as leg pain during walking, numbness or non-healing wounds and ask about lifestyle factors, including smoking and physical activity. 
Personal and family history of heart disease, diabetes, high blood pressure or high cholesterol are also important, as these conditions increase PAD risk. During the exam, providers will check pulses in the legs and feet and look for skin or temperature changes that suggest reduced blood flow.

Diagnostic Tests

Several tests are often used to diagnose peripheral artery disease and evaluate circulation, including:

• Ankle-brachial index (ABI) – Compares blood pressure in the ankle and arm to detect reduced blood flow
• Blood tests – Measure cholesterol levels, blood sugar and other markers linked to vascular disease
• Electrocardiogram (ECG) – Assesses heart rhythm and identifies underlying heart conditions
• Echocardiogram – Uses ultrasound to evaluate heart structure and function
• Ultrasound (Doppler) – Visualizes blood flow through the arteries
• CT or MRI angiography – Provides detailed images of blood vessels and identifies blockages

These tests help confirm PAD, determine its severity and identify related cardiovascular issues.

Differential Diagnosis

Because leg pain and circulation symptoms can have other causes, providers also need to rule out conditions such as:

• Spinal stenosis or nerve compression
• Musculoskeletal injuries or arthritis
• Deep vein thrombosis
• Chronic venous disease

Distinguishing peripheral artery disease from these conditions ensures accurate diagnosis and effective treatment planning.

How Do You Treat Peripheral Artery Disease?

Peripheral artery disease treatment focuses on improving blood flow, reducing symptoms and lowering the risk of serious complications such as heart attack, stroke or limb loss. Once you meet with the right cardiovascular specialist, your care team will thoroughly evaluate your symptoms, overall health and underlying causes of PAD. Based on this assessment, they will recommend a personalized peripheral artery disease treatment plan designed to slow disease progression and improve quality of life.

Medications

Medications are often used to help manage symptoms and support overall heart and vascular health. These include:

• Antiplatelet or blood-thinning medications
• Cholesterol-lowering statins
• Blood pressure medications
• Medications that improve walking distance

Lifestyle Changes

Lifestyle changes are a key part of PAD treatment and often focus on:

• Eating a heart-healthy diet
• Staying active through supervised exercise
• Stopping smoking
• Reducing stress\
• Actively managing diabetes, cholesterol and blood pressure

Surgical and Procedural Interventions

For more advanced disease, options include:

• Angioplasty and stent placement
• Atherectomy
• Bypass surgery

Ongoing Care and Management

Regular follow-up, rehabilitation programs and cardiovascular monitoring are also key to long-term success.

What Are the Complications and Long-Term Effects of Peripheral Artery Disease?

Because peripheral artery disease is caused by widespread narrowing of the arteries, it affects not only blood flow to the legs but also overall heart and blood vessel health. Over time, reduced circulation can damage tissues, limit mobility and increase the risk of serious cardiovascular events.

If PAD is left untreated or continues to progress, it can lead to complications such as:

• Heart attack and stroke due to atherosclerosis affecting arteries throughout the body
• Ongoing leg pain that limits walking and daily activities
• Slow-healing wounds or ulcers on the feet or legs
• Infections caused by poor blood supply to affected tissues
• Gangrene (tissue death) in severe cases of reduced circulation
• Limb loss or amputation when tissue damage becomes extensive

These complications are more likely when PAD is left untreated or diagnosed at an advanced stage.

How Do You Prevent and Reduce Your Risk of Peripheral Artery Disease?

While peripheral artery disease cannot always be prevented, many steps can be taken to significantly reduce the risk of developing the condition or slow its progression. PAD is closely linked to lifestyle and cardiovascular health. Prevention therefore focuses on protecting the arteries, improving circulation and managing conditions that contribute to artery damage.

Lifestyle Modifications

Healthy lifestyle choices play a key role in preventing peripheral artery disease and reducing risk. Recommended preventive steps include:

• Following a heart-healthy diet rich in fruits, vegetables, whole grains and lean proteins
• Exercising regularly, especially walking or other aerobic activities that support circulation
• Quitting smoking and avoiding tobacco products
• Maintaining a healthy weight
• Managing chronic conditions such as diabetes, high blood pressure and high cholesterol
• Reducing stress and prioritizing consistent sleep

These changes help slow plaque buildup in the arteries and improve overall vascular health.

Regular Screenings and Monitoring

Routine medical check-ups are important, especially for individuals with risk factors such as smoking, diabetes or a family history of cardiovascular disease. Early screening for PAD allows providers to detect reduced blood flow before symptoms become severe. Ongoing monitoring helps ensure risk factors remain controlled and treatment plans stay effective over time.

Preventive Medications 

In some cases, healthcare providers might recommend medications to reduce PAD risk, such as cholesterol-lowering drugs or blood pressure medications. 

Living with Peripheral Artery Disease

In addition to lifestyle adjustments, such as quitting smoking, living with peripheral artery disease can be easier with support. Many people benefit from:

• Joining PAD or cardiovascular support groups to share experiences and encouragement
• Working with a healthcare team for ongoing education and care planning
• Using trusted patient education resources to better understand the condition and treatment options
• Seeking counseling or wellness programs when additional support is needed

The TGH Difference for Peripheral Artery Disease

Peripheral artery disease is a progressive condition that can significantly impact mobility, heart health and overall quality of life if left untreated. With early diagnosis, personalized treatment and ongoing care, many people with PAD can manage symptoms, slow disease progression and reduce the risk of serious complications such as heart attack, stroke or limb loss.

If you are experiencing leg pain with walking, numbness, non-healing wounds or have risk factors for PAD, it is important to consult a healthcare provider right away. Because PAD symptoms can be subtle or mistaken for other conditions, early evaluation allows for timely diagnosis and tailored treatment based on your individual needs.

At Tampa General Hospital’s Heart & Vascular Institute, treatment for peripheral artery disease is comprehensive, individualized and nationally recognized. Patients receive coordinated care for heart and vascular conditions from a multidisciplinary team with extensive experience in treating complex disease. This includes:

• A renowned team of cardiologists, vascular surgeons and interventional specialists
• Advanced diagnostic imaging and testing to support accurate, timely diagnosis
• A full range of minimally invasive and surgical treatment options tailored to individual needs
• Access to leading-edge research and clinical trials through collaboration with the University of South Florida
• A strong focus on patient safety, comfort and long-term outcomes

Tampa General Hospital’s commitment to excellence has also earned national and international recognition. This includes being ranked Top 50 in the nation for Heart & Vascular Care by U.S. News & World Report for 2025–26, named one of the World’s Best Specialized Hospitals for Cardiology and Cardiac Surgery by Newsweek, and recognized as the #1 hospital in Tampa and West Central Florida for cardiac care for 2025. TGH is also the only hospital in the Tampa Bay region included on Becker’s Hospital Review’s list of 100 Hospitals and Health Systems with Great Heart Programs.

Through expert care and our comprehensive approach, Tampa General Hospital helps patients receive the right care at the right time, manage PAD effectively and protect long-term heart and vascular health.

Take a proactive step toward lifelong cardiovascular health with the TGH Heart & Vascular team. Call (813) 844-3900 to schedule an appointment today.