Peripheral Arterial Disease (PAD)
Peripheral arterial disease occurs when the arteries that carry blood to the legs become narrowed and cannot deliver enough oxygen-rich blood. This reduced circulation can cause cramping, tightness, heaviness, or fatigue when walking. In more advanced stages, symptoms can also appear at rest.
PAD is common among adults over 60 and affects more than 20 million people in the United States. It is more likely to develop in people who smoke or used to smoke, those with diabetes, high blood pressure, high cholesterol, chronic kidney disease, or a family history of vascular disease.
PAD is a progressive condition, but early diagnosis and treatment can significantly improve mobility and long-term vascular health. Modern treatments can reduce pain, improve circulation, and help prevent serious complications, including nonhealing wounds and limb-threatening infections.
At San Francisco Vein & Vascular Institute, our team specializes in the diagnosis and treatment of leg artery disease. We use advanced imaging and minimally invasive procedures to restore healthy blood flow and help patients return to normal activity with confidence.
Claudication
Claudication is one of the earliest and most common symptoms of PAD. Reduced blood flow makes it harder for the leg muscles to get the oxygen they need during activity. This often causes cramping, tightness, or fatigue in the calves or thighs when walking. Symptoms usually improve with rest but return once activity begins again.
Claudication is a sign that the arteries are narrowing. Early evaluation can help prevent symptoms from progressing.
Rest Pain
As PAD becomes more advanced, blood flow to the legs may be reduced even when the body is at rest. This can cause burning, aching, or throbbing pain that is usually worse when lying down at night. Many patients find relief by hanging their legs over the side of the bed, which increases circulation with the help of gravity.
Rest pain is an important warning sign of significantly reduced circulation. Evaluation and timely treatment improve the chances of protecting limb health and preventing further complications.
Ulceration
When blood flow becomes severely limited, wounds on the toes, feet, or legs may not heal properly. These ulcers can become painful and infected if not treated early. Poor healing is often one of the most serious signs of advanced PAD and requires prompt medical attention.
Early diagnosis and treatment can help prevent wounds from forming or worsening.
Evaluation and Treatment
At San Francisco Vein & Vascular Institute, we specialize in the diagnosis and treatment of PAD. Our experienced team uses advanced imaging and noninvasive vascular testing to understand blood flow and identify blockages.
Treatment options may include lifestyle guidance, medications that improve circulation, and modern minimally invasive procedures designed to open narrowed arteries. These techniques can reduce pain, improve walking ability, and help protect long-term limb health. When needed, surgical options are also available.
If you have leg pain when walking, nighttime foot discomfort, slow-healing wounds, or risk factors such as smoking or diabetes, an evaluation can provide clarity and peace of mind.
Who is at Risk for PAD
PAD is more likely to occur in people who have:
Age over 50
A history of smoking
Diabetes
High blood pressure
High cholesterol
Kidney disease
A family history of vascular disease
Leg pain when walking that improves with rest
Wounds on the feet or toes that heal slowly
Signs You Should Not Ignore
You should schedule a vascular evaluation if you notice:
Cramping or tightness in your calves or thighs when walking
Burning or aching pain in the feet at night
Coldness or color changes in one leg
Slow-healing wounds on the toes or feet
Reduced ability to walk the distances you used to
A history of smoking combined with leg discomfort
