Toxicologist Discusses Nickel Allergy in Essure Device Users


Multiple patients prescribed Essure, a nickel-based contraceptive implant, joined in a class action after suffering numerous complications. The IUD was meant to provide permanent birth control by being implanted directly into the patient’s Fallopian tubes. There were a multitude of varyingly severe side effects, with women suffering perforation of the uterus and other organs, migration of the device outside of the Fallopian Tubes and moving throughout the body, and immune reactions that caused women to have headaches, weight gain, and hair loss. The class action required someone with expertise in toxicology, specifically nickel, to review and opine on the patient’s symptoms.

Question(s) For Expert Witness

  • 1. Please briefly describe your toxicology experience with nickel and nickel related allergies.

Expert Witness Response E-027933

Expert-ID: E-027933

I am a practicing medical toxicologist with experience in occupational and environmental nickel allergies and correlating symptoms. Significant evidence exists regarding malfunction and adverse side effects related to the Essure device, and allergic reactions to nickel may be a contributing factor to some of these patients’ cases.

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