PEMF therapy should never be used if the applicators have to be placed over implanted electrical devices like intrathecal pumps, cochlear implants, and pacemakers. This precaution is taken to make sure that the magnetic field does not affect the performance of these devices.
Further than that, PEMF therapy can be safely used by everyone and anywhere. In addition, applicators can be placed over sensitive organs, for example prostate, over the eyes, and the brain. In effect, study has demonstrated that when applicators are placed the over the heart, they can improve congestive heart failure.
