Is Mri Safe During Pregnancy

Status

caution Last reviewed: 2026-05-16 · Confidence: moderate

Reason

MRI is generally used when clinically needed in pregnancy, but official guidance advises risk/benefit review, especially if contrast is considered.

Drug Information

Brand Name
MRI
Generic Name
Magnetic resonance imaging
Drug Class
Diagnostic imaging procedure
FDA Category
N/A (PLLR narrative label)
Rx Status
unknown

Safe Amount

Dosage must be determined by your provider based on individual risk/benefit.

Effects

Pregnancy
Use only when the exam is needed and results could change care. MRI with gadolinium contrast should be avoided unless clearly necessary.
Mother
May help diagnose important conditions without ionizing radiation. Claustrophobia or discomfort may occur.
Baby
No proven harm from MRI without contrast has been identified in official guidance, but contrast agents are a separate concern.

Trimester Notes

1st Trimester
Use only if needed. Some guidance advises extra caution in the first trimester.
2nd Trimester
No special trimester restriction is recommended for non-contrast MRI, but use should still be based on need.
3rd Trimester
No special trimester restriction is recommended for non-contrast MRI, but use should still be based on need.

Risk-Benefit Note

For imaging choices in pregnancy, MRI can be appropriate when it may improve diagnosis or guide treatment. Do not stop or delay needed care without your OB/GYN or prescriber.

Conditions & Warnings

  • Consult OB/GYN or prescriber
  • Provider review before proceeding if gadolinium contrast is planned
  • If metal implants or a pacemaker are present, MRI safety must be checked first

Alternatives

  • Ultrasound
  • Defer imaging if the answer will not change care
  • Non-contrast MRI when appropriate

References

Black Box Warning: null
← Back to Medication