In 40 seconds
Passive metal implants — joint replacements, plates, screws, wires, dental crowns — are NOT a contraindication for clinical PEMF. The magnetic field doesn't heat metal at the intensities used in therapy (this is different from MRI, which uses much higher field strengths). PEMF actually accelerates bone-implant integration and is FDA-cleared for post-surgical use. Only electronic implants (pacemakers, defibrillators, cochlear implants, insulin pumps, neurostimulators) are hard contraindications because they can be electrically disrupted.
Quick facts
- Joint replacements: Safe — actually supports integration
- Plates and screws: Safe
- Dental work: Safe
- Pacemakers / electronics: HARD contraindication
- Cochlear implants: Contraindication
- Insulin pumps: Contraindication
- Neurostimulators: Contraindication
Practical guidance
See FAQ below for specific scenarios.
Contraindications
Standard PEMF contraindications: pacemakers, defibrillators, cochlear implants, insulin pumps, electronic implants; active malignancy without specialist clearance; pregnancy (over the abdomen); active infection; epilepsy without GP clearance.
Frequently asked questions
Will PEMF affect my knee replacement?
No — and it may actually help. PEMF is FDA-cleared for post-surgical pain and oedema and supports bone-implant integration.
What about dental implants?
Safe. Titanium dental implants don't heat or move under clinical PEMF.
I have a pacemaker — can I have PEMF?
No. Pacemakers and other electronic implants are hard contraindications. The field can interfere with device function.
Why is MRI different?
MRI uses much higher field strengths (1.5–3 Tesla) compared to clinical PEMF (typically microtesla to millitesla). Different physics, different rules.
Looking for a PEMF clinic near you?
We list every credible PEMF therapy provider in the UK so you can find one near home.