How often should you have
a full-body MRI?

CoreVitals is a screening service. Screening means looking for early signs of disease in people who feel well, before there is anything to complain about. It is not a diagnostic service: we are not investigating a symptom you already have, and we are not a substitute for going to your GP about one. Where a scan finds something that needs a closer look, that next step is diagnostic, and we will refer you into it.

That distinction is what sets the interval. A screening interval is a judgement about how quickly a clear picture stops being current.

A full-body MRI gives you a clear picture of what's happening inside your body, without radiation. On its own, a single scan is a snapshot of that moment. Repeated at the right interval, it becomes more useful: a way of tracking change over time, and giving your clinical team an evolving picture to work from.

Two things set that interval, and we set out the detail behind them below. Background risk for much of what this kind of imaging can pick up rises with age, and rises more steeply from around 40. And a clear scan is a statement about that moment, so the confidence it gives you naturally lessens as time passes. Together, this is why we recommend annual scanning from 40, and every two years below it.

Age is a sensible general default, but it isn't the only thing that affects risk. Family history, genetics, smoking history, ethnicity and any previous history of tumours can all mean a different interval, or additional targeted investigations alongside your MRI, makes more sense for you. Where any of these apply, your clinical team will talk this through with you and may recommend an adjusted plan rather than the general default above.

CoreVitals is a private, preventative health company. Our recommendations are guided by the best available evidence, and tailored to you as an individual, which is a different starting point to NHS or NICE guidance. NHS and NICE guidelines are designed for population level care, and have to weigh up limited public resources across everyone in the country. That's the right approach for a national health service, but it means their guidance is often more conservative than what may be right for you personally. We think you're entitled to make an informed choice with the fuller picture, which is what this recommendation, and the evidence behind it, aims to give you.

Regular scanning, at the interval that suits your age and health profile, gives you and your care team an evolving picture rather than a single moment in time. That makes it easier to spot subtle changes early, ask better questions at your next check up, and make informed decisions about your health.

No scan can detect everything, and full-body MRI is a complement to, not a replacement for, screening such as mammograms and cervical screening. Your GP or specialist remains central to your care.

Whole-body MRI commonly identifies incidental abnormalities. Most are benign, but some will need additional imaging or specialist assessment before their significance can be established. Our clinical team will always talk you through any findings, in context, as part of your results.

Full-body MRI is still a relatively new area of preventive health, and we think it's important to be upfront about both what the evidence shows and where it's still developing.

Our interval is our own clinical position, arrived at from the published work on preventive whole-body imaging and from what we see in our own reporting. Two things drive it. The first is age: the background risk of most of what this kind of imaging can pick up rises as you get older, and it rises more steeply from around 40. The second is time: a clear scan is a statement about a moment, and the confidence it gives you naturally lessens as that moment recedes. Taken together, our view is that a year is the point from 40 at which the picture is worth refreshing, and two years is a defensible interval below it.

It also matters what a whole-body MRI covers. Several of the organs it images, the kidneys, the bladder, the ovaries, sit outside every routine UK screening programme, so for those there is no other interval to fall back on. That is part of why we would rather keep the interval tight as you get older than lengthen it.

The same logic explains the exception. The reassurance a clear scan gives you is reassurance about a clear scan. Once a clinically relevant finding is identified, the interval is no longer set by background risk but by the finding itself, and next steps, whether further imaging, a different scan type, or referral, are determined by what that specific finding needs, not by a fixed rule.

We also want to be clear about where opinion differs. Bodies such as the Royal College of Radiologists and the UK National Screening Committee take a more cautious view of whole-body MRI as a population wide screening tool, largely because it hasn't yet been shown, at a population level, to reduce deaths from disease, and because any sensitive scan can pick up findings that turn out not to matter. As a private, preventative health company, our approach is guided by the best available evidence and tailored to each individual, which may go beyond standard NHS or NICE guidance, designed as it is for population level care under resource constraints. We think individuals are entitled to make informed choices about their own health with fuller information, provided they understand the benefits, costs, and the limitations, which our clinical team will always talk through with you.

These are the reference points we would point you to, including both the evidence supporting what we recommend and the perspectives that disagree with us.