Essure is a medical device that induces permanent sterilization in women. Essure is a sterilization method in which small metal coils are placed into both fallopian tubes, causing them gradually to close. Fertilization can no longer take place after approximately 3 months when the fallopian tubes are blocked. In 2016 RIVMNational Institute for Public Health and the Environment analyzed the complaints which women experienced after sterilization by the Essure method.