What should you know about MRI scan sound?

Inside the scanner, coils switch magnetic fields rapidly to create different types of images. Their movement produces tapping, knocking, humming, or buzzing sounds that change as each sequence runs. The sound is part of the scanning process and does not mean that the machine is damaging the image or failing.

The scanner team normally offers earplugs or headphones and may provide music where available. You can communicate with staff during the examination, even though the room may be noisy. The table may move slightly between image sequences, and remaining still helps prevent blurred pictures.

Tell staff before starting if you have hearing sensitivity, tinnitus, anxiety, or difficulty staying in enclosed spaces. Check that your hearing protection fits comfortably, and agree on the signal or call button used to request help. Practise slow breathing between sequences and report discomfort early rather than trying to endure it silently.

The usual MRI noise is not an emergency, but tell staff immediately if the sound is accompanied by pain, burning, dizziness, panic that feels unmanageable, or a problem with the hearing protection. After the appointment, seek urgent help for sudden hearing loss, severe breathing difficulty, collapse, or new neurological symptoms.

What hearing protection will be available? Can I listen to music? How long will I need to remain still? What should I do if the noise or enclosed space becomes difficult?