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Lost IUD threads — DRCOG MCQ

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ModerateContraceptionLost IUD threadsDRCOG

A 37-year-old woman with a copper IUD cannot feel her threads. She has no pain or bleeding. Her last period was normal and a urine pregnancy test is negative. What is the most appropriate investigation?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Perform speculum examination and arrange ultrasound if threads are not seen

Lost threads require pregnancy exclusion, speculum examination and ultrasound if threads are not visible, to confirm intrauterine location. Immediate replacement risks perforation or double insertion if the device is still present. Reassurance without locating the device is inadequate. Laparoscopic removal is reserved for extrauterine devices and specialist care.

Reference: FSRH Intrauterine Contraception