Most common complication of intra uterine device (IUD)?

NORCET-7 Mains-2024

Obstetrics & Gynaecology

Easy

Appeared in: NORCET-7 Mains-2024

Explanation

Spontaneous expulsion is a significant and frequent complication associated with IUD use.
Reported expulsion rates vary, with some sources indicating rates as high as 12-20% (SRC_4, SRC_5). Another source notes a cumulative 3-year expulsion rate of approximately 10% (SRC_6).
Expulsion is most likely to occur within the first few weeks following insertion or during menstruation.
While bleeding and pain are the most common side effects leading to IUD removal, spontaneous expulsion is the most common distinct complication among the choices provided.

Option A: Painful coitus (dyspareunia) is not the most common complication. While it can occur, it is less frequent than spontaneous expulsion. Painful menstruation (dysmenorrhea) is a more common side effect.
Option C: This is factually incorrect. IUDs do not increase a woman's risk of acquiring STDs. However, they provide no protection against them, so condom use is still recommended for STD prevention.
Option D: The risk of Pelvic Inflammatory Disease (PID) is highest primarily within the first 3 weeks after insertion and is low overall. It is often linked to an untreated infection present at the time of insertion rather than the device itself.

Visual 1: Diagram - A diagram illustrating a correctly placed IUD within the uterine cavity compared to a partially expelled IUD in the cervical canal and a fully expelled device. This helps visualize what happens during expulsion.
Visual 2: Infographic - An infographic of the 'PAINS' acronym (Period late, Abdominal pain, Infection, Not feeling well, String missing) to help students remember the key warning signs for IUD users.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications of Intrauterine Devices (IUDs) as background academic context rather than a clinical decision trigger.
A key nursing responsibility is patient education. Nurses must instruct patients on how to check for the IUD strings monthly, typically after their menstrual period, to confirm the device is still in place, as up to 20% of expulsions go unnoticed (SRC_4, SRC_5).
If a patient reports she can no longer feel the IUD strings, the nurse must advise her to use a backup contraceptive method and seek a clinical evaluation promptly to rule out unnoticed expulsion or uterine perforation.
What if? If a patient with an IUD becomes pregnant, the nurse's first action should be to assess for ectopic pregnancy, as a higher proportion of pregnancies that occur with an IUD in place are ectopic (SRC_6).

How to Approach the Question

First, identify the core of the question: it asks for the 'most common' complication of an IUD.
Next, systematically review the options provided, recalling the known side effects and complications associated with IUDs.
Evaluate each option based on its frequency. Recall or look up the incidence rates: bleeding and pain are common side effects leading to removal; expulsion rates are significant (10-20%); PID risk is low and concentrated post-insertion; perforation is rare (<1%); and the idea of increased STD risk is a misconception.
Compare the complications. Spontaneous expulsion occurs much more frequently than PID or perforation.
Distinguish between 'side effects' (like bleeding/pain) and 'complications' (like expulsion). Among the complications listed, expulsion is the most frequent.
Therefore, select 'Spontaneous expulsion of IUD' as the correct answer.

Concept Tested & Keywords

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