Carotid Artery Disease: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Carotid Artery Disease?
Carotid artery disease is treated by a neurologist, a doctor who treats brain and nerve problems, or a vascular surgeon, a doctor who operates on blood vessels. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is carotid artery disease?
Carotid artery disease is when the carotid arteries become narrowed or blocked. The carotid arteries are two large blood vessels in your neck. They supply your brain and head with blood.
The cause is usually atherosclerosis, the buildup of plaque inside the arteries. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. The plaque may slowly narrow the carotid artery. Or it may cause a clot to form suddenly. A clot that blocks the artery enough to reduce blood flow can lead to a stroke. Carotid artery disease is serious because it can block blood flow to the brain.
Symptoms
At early stages, you may not have any symptoms. The first signs may be a stroke or a transient ischemic attack (TIA), a kind of mini-stroke. A TIA is a temporary reduction in blood flow to the brain that does not cause lasting damage. Symptoms of stroke and TIA include:
- Blurred vision or vision loss.
- Confusion or loss of memory.
- Loss of sensation in one part of your body.
- Problems with speech and language, including loss of speech.
- Weakness in one part of your body.
Another sign is a bruit, a whooshing sound your doctor hears when listening to your artery with a stethoscope.
Causes and who gets it
Risk factors include smoking, diabetes, high blood pressure, high cholesterol and triglycerides, older age, and a family history of stroke or blood vessel disorder. Alcohol use, recreational drug use, neck trauma, and radiation therapy to the neck also raise the risk. People who smoke one pack a day double their risk for stroke.
How doctors diagnose it
Your doctor will do a physical exam and may listen to the blood flow in your neck with a stethoscope for a bruit. You may have blood tests for cholesterol, triglycerides, and blood sugar. An ultrasound of the carotid arteries, called a carotid duplex ultrasound, shows how well blood is flowing. Imaging tests of the neck and brain blood vessels may include cerebral angiography, CT angiography, MR angiography, or transcranial Doppler ultrasound.
Treatment
Treatment options include blood-thinning medicines such as aspirin or clopidogrel. These lower your risk for stroke. Medicine and diet changes can lower your cholesterol or blood pressure. Some people need no treatment other than periodic checks of the carotid artery.
Procedures can treat a narrowed or blocked carotid artery. One is carotid endarterectomy. This surgery removes the plaque buildup in the carotid arteries. Another is carotid angioplasty and stenting. It opens the blocked artery and places a tiny wire mesh tube, called a stent, to keep it open.
When to see a doctor
Go to the emergency room or call 911 as soon as stroke or TIA symptoms occur. These include sudden blurred vision, confusion, loss of speech, or weakness in one part of the body. With a stroke, every second of delay can cause more brain injury. The sooner you receive treatment, the better your chance for recovery.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Such a doctor can track your blood pressure, cholesterol, and blood sugar over time. They can also arrange carotid ultrasound screening and coordinate care with a neurologist or vascular surgeon.
Common questions
Why does carotid artery disease cause strokes?
Too much plaque can block the artery. A piece of plaque or a blood clot can also break off, travel through the bloodstream, and get stuck in one of the brain's smaller arteries. This cuts off blood flow and causes a stroke.
How long does a TIA last?
A TIA causes the same symptoms as a stroke, but it lasts only a few minutes to an hour or two, and no longer than 24 hours. It does not cause lasting damage. A TIA is a warning sign that a stroke may happen in the future.
Can carotid artery disease be prevented?
You can lower your risk. Quit smoking, follow a healthy low-fat diet with plenty of fresh vegetables and fruits, exercise at least 30 minutes a day most days, and limit alcohol. Get your cholesterol checked every 5 years and your blood pressure checked every 1 to 2 years.
What recovery is possible after a stroke?
Some people who have a stroke recover most or all of their functions. About one half of people who have a stroke have long-term problems. Others die of the stroke itself or from complications.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
