It is usually unlikely for the IUD coil to come out, but if one is not feeling the threads, then it has moved, as stated by NHS. A doctor will teach a person how to feel the presence of the IUD coil during fitting it in place.
An intrauterine device, or IUD coil, is a contraception method essential for preventing pregnancy. It is a small T-shaped copper and plastic apparatus that is placed into the womb by a professional doctor. This device works by inhibiting the survival of sperm and eggs in the fallopian tube or womb, as stated by NHS.