Most people emerge from an MRI scan without issues, but some do experience discomfort or feelings of illness during or after the procedure. Let’s get into why this happens, what causes these feelings, and how you can make your MRI experience more comfortable.
Why Are People Concerned About Getting Sick from MRIs?
Many patients worry about feeling unwell during or after an MRI scan. This concern stems from real experiences shared by friends, family members, or stories found online. Some patients report nausea, dizziness, headaches, or even vomiting following their scan.
If you’re scheduled for an MRI and feeling nervous about potential side effects, you’re not alone. These worries are completely normal, especially if this is your first scan or you’ve had uncomfortable experiences with medical procedures in the past.
Can an MRI Actually Make You Sick?
The short answer: An MRI itself doesn’t make you sick in the traditional sense—there’s no radiation or harmful energy being emitted that causes illness. However, several aspects of the MRI experience can trigger physical discomfort that feels like sickness.
What Really Causes Discomfort During an MRI?
Claustrophobia and Anxiety
The confined space of an MRI machine can trigger anxiety or panic in many people. This anxiety can manifest as physical symptoms, including:
- Nausea
- Dizziness
- Rapid heartbeat
- Sweating
- Shortness of breath
These physical responses to stress can certainly make you feel unwell during and after the procedure.
Motion Sickness
Some patients experience a form of motion sickness during an MRI. While you remain still, your inner ear can become confused by the vibrations and movements of the machine, combined with seeing the stationary tube around you.
Noise and Vibration
MRI machines are notoriously loud. The banging, knocking, and humming sounds come from the magnetic coils turning on and off rapidly. These intense sounds and accompanying vibrations can trigger headaches or increase anxiety, contributing to feelings of sickness.
Temperature Issues
MRI rooms are typically kept cool to prevent the machines from overheating. Lying still in a cool room for 30-60 minutes can make you uncomfortable or even leave you feeling chilled.
Contrast Dye Reactions
If your MRI requires contrast dye (typically gadolinium), some people experience mild reactions, including:
- Nausea
- Headache
- Dizziness
- A metallic taste in the mouth
- Warmth or coldness at the injection site
Severe allergic reactions are rare but possible.
How to Avoid Feeling Sick During Your MRI?
Before Your Appointment:
- Talk to your doctor about anxiety medication: If you’re prone to claustrophobia or anxiety, ask about taking a mild sedative before the procedure.
- Avoid heavy meals: Eat lightly before your appointment to reduce the chance of nausea.
- Practice relaxation techniques: Learn deep breathing or meditation exercises that can help during the scan.
- Choose your appointment time wisely: If possible, schedule your MRI when you’re typically most relaxed during the day.
- Discuss alternatives: Ask if an open MRI is available and appropriate for your diagnostic needs.
During Your MRI:
- Close your eyes before entering: Many people find it helps to close their eyes before being moved into the machine and keep them closed throughout.
- Use the provided earplugs or headphones: These significantly reduce the noise and can play music to distract you.
- Focus on your breathing: Slow, deep breaths can calm your nervous system.
- Use visualization techniques: Imagine yourself in a peaceful, open space rather than focusing on the confined environment.
- Remember, you can communicate: You’ll have a button or microphone to speak with the technician if you need a break.
Common Questions
How long do MRI side effects last?
Any discomfort typically resolves within a few hours after the procedure. If you’re still feeling unwell after 24 hours, contact your doctor.
Can I drive myself home after an MRI?
If you haven’t taken sedatives, you should be able to drive yourself home. However, if you’re prone to anxiety or claustrophobia, it’s best to arrange for someone to drive you.
What should I tell the technician before my MRI?
Mention any anxiety, claustrophobia, previous bad experiences with MRIs, or tendency toward motion sickness. They can take extra steps to make you comfortable.
Are there alternatives if I can’t tolerate an MRI?
Depending on what your doctor needs to examine, alternatives might include open MRIs, CT scans, ultrasounds, or X-rays, though these provide different information.
Should I be worried if I feel dizzy after an MRI?
Mild dizziness is common and usually subsides quickly. Sit or lie down until it passes. If severe dizziness persists, contact a healthcare provider.
Final Thoughts
Remember that while feeling unwell during or after an MRI is unpleasant, it’s typically temporary and not harmful to your long-term health. The diagnostic benefits of the MRI far outweigh these temporary discomforts for most patients.
If you’re worried about an upcoming MRI, talk openly with your healthcare provider about your concerns. They can help you prepare properly and might suggest strategies specific to your situation to make the experience more comfortable.
Your health and peace of mind matter, and understanding what to expect can make a world of difference in your MRI experience.
I’m Insha Naim – the co-founder and managing director of MRI Lucknow and a neurophysiotherapist at Physio and Rehab Centre in Lucknow, Uttar Pradesh.
I love helping people regain their mobility and improve their well-being. Whether I’m leading my team at MRI Lucknow or working directly with patients, I’m dedicated to providing personalized and compassionate care.