Should you have a carotid artery scan if you feel well?

The short answer

If you feel well and have no risk factors, you probably don’t need a carotid artery scan. The UK doesn’t screen the general population for carotid narrowing. A scan is most useful if you have risk factors, such as a family history of early heart disease or stroke, high blood pressure or cholesterol, diabetes, an inflammatory condition or menopause, and want to know whether artery changes have already started.

I offer carotid artery scans, so you might expect me to say everyone should have one. I don’t think that, and I’d rather explain honestly who benefits most.

What does a carotid artery scan show?

The carotid arteries run up each side of your neck to the brain. A carotid artery scan is a painless ultrasound, with no radiation and no preparation. It looks at:

the thickness of the artery wall, known as carotid intima-media thickness
plaque, both soft and calcified
signs of early atherosclerosis, the slow build-up that underlies most heart attacks and strokes

In my clinic the scan itself takes 20 to 30 minutes, within an appointment of about an hour, and costs £456. You can read the full details in my Carotid artery scan guide.

What does the guidance say about scanning people without symptoms?

From a functional medicine perspective, prevention starts before symptoms appear. The key question is whether a scan will add useful information to your individual risk assessment and help guide action.

In my practice, carotid ultrasound forms part of a broader, personalised assessment. We consider the findings alongside blood pressure, cholesterol particles such as ApoB, Lp(a), blood sugar, smoking history and family history.

The purpose is to turn that information into a practical prevention plan: improving nutrition, metabolic health, movement, sleep and other relevant contributors, alongside medication where appropriate. Before recommending a scan, I consider what it could add and how the result would influence your care.

Who is a carotid artery scan most useful for?

I’m most likely to suggest a scan if you:

have a parent or sibling who had a heart attack or stroke at a young age
have high blood pressure, high cholesterol or raised Lp(a)
have diabetes or pre-diabetes
have an autoimmune or inflammatory condition, such as rheumatoid arthritis, lupus or psoriasis
are perimenopausal or postmenopausal, when artery risk rises
have had a TIA (mini-stroke) in the past and want to track your arteries, alongside NHS care
are unsure whether to start a statin and want more information to help decide with your GP

What can a scan change?

Result	What it can mean for you
Healthy arteries	Reassurance, and a baseline to compare with in future
Thickened wall, no plaque	An early warning, and a strong reason to act on blood pressure, blood sugar, cholesterol and lifestyle
Plaque present	A clearer picture of your risk, often worth discussing with your GP, including whether medication is needed

For many people, seeing their own arteries is more motivating than any number on a blood test.

What can’t a carotid scan do?

It can’t predict exactly whether you’ll have a heart attack or stroke.
It doesn’t look at the heart’s own arteries directly. A coronary calcium score does that, using a CT scan.
It doesn’t replace blood pressure checks, cholesterol tests and your GP’s risk assessment.
It’s not an emergency test.

Common questions

Does the NHS offer carotid scans to healthy people?

No. The NHS scans the carotid arteries when there’s a clinical reason, for example after a TIA or stroke. It doesn’t screen the general population.

Is a carotid artery scan safe?

Yes. It uses ultrasound, the same technology as pregnancy scans. There’s no radiation, and no preparation is needed.

How often should I repeat a carotid scan?

If your first scan is clear, there’s often no need to repeat it for several years. If it shows changes, a repeat after one to three years can show whether your plan is working.

Should I have a scan if I’m already on a statin?

It can still be useful as a baseline, or to check progress. It won’t replace your doctor’s monitoring. Don’t stop a statin without speaking to your prescriber.

Wondering whether a scan is right for you? Book a free discovery call.