MRI scans with tattoos and piercings

The answer where you are

Start here, because the internet will frighten you

Search this subject and you will find burn stories with no sense of how often it happens. Here is

the count.

A systematic review of the entire published literature found 17 reported incidents involving

tattoos or permanent make-up and MRI — **all of them with full, fast recovery and no lasting

effects. Separately, the FDA received six reports between 2008 and 2017**.

And when researchers went looking prospectively, they found nothing at all. **The Rhineland Study

(2022) scanned 3,639 people at 3 Tesla, of whom 305 had tattoos or permanent make-up**.

Not one adverse event. The authors concluded that tattoos and permanent make-up are eligible

for 3T scanning, and noted that relaxing the usual exclusions let them include **16.6% more

people** than the standard criteria would have.

That matters more than it sounds. Being frightened out of a diagnostic scan is itself a harm.

If a doctor has asked for an MRI, the tattoo is not the thing to worry about.

Why a tattoo can heat at all

Some inks — historically dark ones, particularly those containing iron oxides — conduct

electricity. An MRI scanner uses powerful radiofrequency pulses, and a conductive loop in the skin

can pick that energy up and warm. A tattoo with long continuous lines, or one shaped like a

closed ring, is the geometry most often described.

What that feels like, in the reports where it happened, is a tingling or warmth during the

scan — not afterwards. It is immediate, and that is exactly why the precaution below works.

What to actually do about a tattoo

1. Tell the radiographer you have tattoos, and where. They will not be surprised and it is not

a problem. Do this at the booking stage if you can.

1. Speak up the moment anything feels warm. You will be given a buzzer. Use it. The review's

own wording is that reactions "have been reported by patients instantaneously" — so the person

in the scanner is the sensor.

1. A cold compress can be used on a tattoo that will be in the radiofrequency field.
2. ⚠️ Not a wet towel. The same review is explicit: a wet compress "can create a conductive

loop and risk of burns via this mechanism". This is the detail nobody mentions, and it turns a

sensible precaution into the very thing it was meant to prevent.

If you cannot communicate during the scan — sedated, or unable to press a buzzer — the review

suggests a cold compress applied in advance is prudent, precisely because the usual safeguard

depends on you being able to say something.

Piercings: the part that actually affects you

This is the practical problem, and it has nothing to do with your tattoos.

Metallic body jewelry is normally removed before you go anywhere near the scanner. Three

separate reasons, and only one of them is the one people expect:

• It can move. A magnetic piece can pull. Depending on where it is, that ranges from an odd

sensation to something worse.

• It can heat. Anything electrically conducting can warm in the radiofrequency field.
• It ruins the picture. Metal distorts the image around it. If the scan is of your head and

you have facial piercings, the thing the doctor needs to see may be the thing the jewelry

obscures.

"But mine is titanium and titanium is not magnetic." True, and it does not settle it. Not

magnetic is not the same as not conductive, and it is not the same as not showing up on the image.

The department decides, not the internet, and they are the ones who will have to repeat the scan

if it comes out unreadable.

If a piece genuinely cannot be removed, say so before the day. It is a normal conversation and

there are options — stabilising it, adjusting the scan, or working around it. What does not help

is arriving with it in and hoping.

If your piercing is still healing

Here is the situation nobody writes about, and it is the one that actually causes distress.

A piercing that is not yet healed can shrink or close quickly once the jewelry is out —

sometimes within hours, occasionally faster, depending on the piercing and how new it is. So the

person with a two-week-old piercing and an MRI on Thursday is caught between two real problems.

Do not solve this on the day. Ring the radiography department in advance and say plainly: this

piercing is N weeks old, it may close if it comes out, what do you advise. And ask your piercer the

same question. Between them you will get a plan — which may be a non-metallic retainer, may be

taking it out and accepting a re-pierce, and may be that for your particular scan it does not

matter.

What you should not do is take it out yourself at the last minute in a hospital corridor, or lie

about having it.

What this page cannot tell you

Every MRI department has its own protocol, and they are not identical. Field strength differs

between scanners, the part of you being scanned changes what is in the radiofrequency field, and

a department may be stricter than the published research for perfectly good reasons of its own.

Nothing here overrides what the people running your scan tell you on the day.