For most people, yes - MRI uses no ionizing radiation, so the cancer-risk worry attached to x-rays and CT does not apply.
The real hazards are magnetic: the always-on magnet can pull, heat, or disable metal in and on the body, which is why the implant and metal-fragment screening questions are strict. Contrast dye carries its own caution for people with poor kidney function.
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Common questions
Is an MRI safe?
For most people, yes - and the starting fact is that MRI does not use ionizing radiation at all, so the cancer-risk worry attached to x-rays and CT scans does not apply. The real hazards are magnetic. The scanner's magnet is always on and powerful enough to pull metal objects across the room and to heat, move, or disable metal inside the body, which is why the screening form grills you about pacemakers, aneurysm clips, cochlear implants, metal fragments, and shrapnel - many modern implants are MRI-safe under defined conditions, but the team must know exactly what you have. The FDA also notes risks with contrast dye for people with poor kidney function, and the loud noise is managed with ear protection. Pregnancy is handled cautiously, especially early. Honest summary: no radiation risk, very safe for most, but the metal questions are not bureaucracy - answer them completely. Pymander, a free AI doctor available 24/7 by text, can help you think through an implant or device before the scan.