An intrauterine device (IUD) is a highly effective, long-acting reversible contraceptive placed inside the uterus. It features a thin thread, known as the IUD string, which extends through the cervix. These strings allow healthcare providers to confirm the IUD’s position and safely remove the device. Regularly checking for these strings is a simple and proactive self-care practice.
Steps for Checking Your IUD String
Begin by thoroughly washing your hands with soap and water to prevent introducing bacteria. Find a comfortable position, such as squatting, sitting on the toilet, or standing with one leg elevated on a surface.
Gently insert your index or middle finger into your vagina until you feel your cervix. It typically feels firm and rubbery, similar to the tip of your nose. With your finger near the cervix, sweep around to locate the IUD strings. These strings are thin, often described as feeling like soft fishing line or fine thread.
While there are two strings, they may feel like one. If you can feel them, it usually indicates your IUD is in the correct position. A common recommendation is to check monthly after menstruation, as the IUD is most likely to shift during this time.
What to Expect When Checking
When performing a self-check, you should feel two thin, soft threads. These strings, typically 1 to 2 inches long, often curl around the cervix, making them accessible.
It is normal for the length and position of the strings to subtly change throughout your menstrual cycle. This occurs because the cervix itself changes position, affecting how easily the strings are felt or how long they seem. You should only feel the strings, not the hard plastic of the IUD device itself, which is located inside the uterus.
When to Contact Your Doctor
You should promptly contact your healthcare provider regarding your IUD strings in specific situations. If you are unable to feel your IUD strings, or if they feel significantly shorter or longer than previous checks, the IUD may have shifted or been expelled. It is also concerning if you can feel the hard, plastic part of the IUD device itself protruding from your cervix.
Seek medical attention if you experience new or worsening pain, severe cramping, unusual vaginal bleeding, or abnormal discharge. These symptoms, especially when accompanied by an inability to locate the strings or a change in their feel, warrant professional evaluation to confirm the IUD’s position and effectiveness. Until your IUD’s position is confirmed, use a backup method of contraception.