If you’ve been told you need an MRI scan, you might feel unsure about what that involves. You may be wondering if it will hurt, how long it will take, or what the machine actually does. These are common questions, and the good news is, an MRI scan is safe, painless, and more straightforward than many people expect.
As part of NHS Preventive Healthcare, MRI scans play an important role in early detection and diagnosis, helping healthcare professionals identify potential health issues before they become more serious.
Follow along as this guide outlines everything, beginning with preparation and leading to results, so you know what to expect and feel more at ease on the day of your appointment.
What is an MRI scan?
MRI stands for Magnetic Resonance Imaging. It captures high-resolution images of the body’s inner structures by using radio waves and magnetic fields. Unlike X-rays or CT scans, an MRI doesn’t use radiation. That makes it a preferred choice for looking at soft tissues such as muscles, joints, the brain, and the spinal cord.
Doctors often recommend MRIs to help diagnose pain, swelling, or injuries that aren’t clear on other scans. It’s also useful for checking ongoing health concerns or monitoring how your body is responding to treatment.
Before the Scan
Once your scan is booked, you’ll receive instructions about how to prepare. In most cases, you won’t need to make big changes to your routine. However, there are a few things to keep in mind:
- Clothing: Wear loose, comfortable clothes without zips, buttons, or metal. You may be asked to change into a gown.
- Jewellery and metal: You’ll need to remove all metal items, including watches, piercings, hair clips, or belts. This is because the scanner uses a strong magnetic field.
- Medical information: You’ll fill out a form asking about any implants, pacemakers, metal fragments, or previous surgeries. This helps ensure your safety.
- Eating and drinking: Most MRI scans don’t require fasting. If yours does, such as when contrast dye is used, you’ll be told ahead of time.
If you’re nervous or claustrophobic, let the staff know. You can ask about options to help you stay calm, including listening to music or using a mirror device inside the scanner.
Arrival and check-in
When you arrive at the clinic, you’ll check in at reception and may be asked to confirm some details. You will be informed thoroughly on what’s about to happen, the process, and any questions you can raise by someone from the team.
You’ll be asked to store personal items in a safe place. Then you’ll be taken to the scan room.
During the MRI scan
The MRI scanner is a large machine with a short tunnel in the middle. You’ll lie on a table that slides into the scanner. The area being scanned will be positioned in the centre of the tunnel.
The radiographer will control the machine from the next room, but they’ll see you the entire time and you can speak to them through a microphone. You’ll also be given a call button to hold in case you need to stop the scan.
What you’ll hear and feel
The scanner makes loud tapping or thumping noises during the scan. This is normal. You’ll be given earplugs or headphones to reduce the sound.
The most important thing is to lie still. This helps create clear images. Some scans take 15 minutes; others can take up to an hour, depending on the area being examined.
If contrast dye is needed
In some cases, a contrast dye may be used to highlight certain parts during the body check. It’s given through a small injection in your arm. Most people don’t feel any different after having it. You’ll be told in advance if this applies to your scan.
After the scan
The machine will slide the table out once the scan is done. You can get up and return to the waiting area. Unless you’ve had a sedative, which is rare, you can go about your day as normal. You can drive, go to work, or head home.
If contrast dye was used, you may be advised to drink more water to help your body clear it.
Getting your results
Your scan images will be reviewed by a radiologist, a doctor trained to understand MRI results. A written report is then sent to your referring doctor or healthcare provider.
At most private clinics, including providers like Vista Health, results are usually available within a few working days. In some cases, you might have access to your results through a secure online portal.
Tips for nervous patients
It’s normal to feel unsure, especially if this is your first MRI. Here are some tips that may help:
- Ask for music or noise-cancelling headphones
- Practise slow breathing before and during the scan
- Close your eyes and try to focus on something calming
- Let the staff know if you’re anxious. They’re used to helping people through it
Many patients say the experience is easier than expected once they know what’s coming.
Why regular health checks matter
Scans like MRIs are one part of a broader effort to look after your health. While not everyone needs advanced imaging, it’s helpful to know when to get screened for common conditions. These include checks for blood pressure, cholesterol, cancer, and other issues that may not show symptoms early on.
If you’re over 40, you might also be eligible for the NHS health check programme. It’s a simple way to assess if you are at risk of stroke, heart disease, or type 2 diabetes.
Private providers like Vista Health also support patients who need faster access to scans, especially when waiting lists are long.
Final thoughts
MRI scans are safe, painless, and incredibly useful for spotting what’s going on inside the body. The process might sound complex at first, but once you’ve gone through it, you’ll see that it’s manageable and straightforward.
If your doctor has referred you for an MRI or you’ve booked one yourself, you can feel more confident knowing what the experience will involve. Ask questions, stay informed, and take each step one at a time. The more you know, the easier it gets.
Tim Williamson, a psychology graduate from the University of Hertfordshire, has a keen interest in the fields of mental health, wellness, and lifestyle.
