Can one develop allergy to an IUD?

Sure, some women do develop an allergy to an IUD, but the allergy is usually to the copper, which is part of the device. To check for copper allergy one can have a simple skin test at the doctor’s office. Of if, you want to save money, just apply a piece of copper jewelry on your skin for a few days and see what happens. In most cases, if you are allergic, the skin will go red and will become itchy. Today, there are IUDs available that do not contain copper.