Bleeding Between Periods With an IUD

Light spotting is especially common while the uterus adjusts during the first few months. A hormonal IUD may eventually make periods lighter, while a copper IUD may make bleeding heavier or longer, particularly soon after fitting.

Timing and accompanying symptoms matter. Spotting that began soon after insertion and is gradually settling may reflect adjustment to the device. Bleeding that starts after a stable pattern, continues beyond the expected adjustment period, follows sex, or comes with pain should be checked.

An IUD is not the only possible explanation. Chlamydia can present with bleeding between periods, and uterine fibroids or endometrial polyps can also cause abnormal bleeding. A clinician may also consider pregnancy, changes in the cervix, or whether the IUD has moved.

Record when the bleeding occurs, whether it is spotting or a flow, how many pads or tampons you use, and any cramps, discharge, fever, pain during sex, or missed period. This helps a clinician see whether the pattern is changing.

Arrange a routine appointment if bleeding keeps returning, affects daily life, or begins after your cycle had settled. Assessment may include a pregnancy test, infection testing, an examination of the vagina and cervix, and sometimes an ultrasound. Do not try to reposition or remove the IUD yourself.

Seek urgent medical care for very heavy bleeding, severe or worsening lower-abdominal pain, fainting, marked dizziness, fever, unusual or foul-smelling discharge, or a positive pregnancy test. Bleeding with a missed period and pelvic pain requires prompt assessment because an ectopic pregnancy must be excluded.

If you cannot feel the IUD threads, they suddenly feel different, or you can feel the device itself, use backup contraception and contact a clinician promptly. The position should be checked before relying on the IUD.

Ask whether your bleeding pattern fits the type of IUD and when it was inserted; whether pregnancy, infection, cervical changes, polyps, or fibroids need to be excluded; how the IUD position will be checked; and which symptoms should change the urgency of follow-up.