Does the mirena stop periods?

Mirena releases a progestogen inside the uterus. This makes the womb lining thinner, so there is less lining to shed. Bleeding may be unpredictable at first, then become lighter, shorter, or absent. Some users continue to have regular periods, and a change in bleeding does not by itself show whether contraception is working.

Heavy bleeding can have other causes, including fibroids, adenomyosis, endometrial hyperplasia, endometriosis, or hormonal changes around perimenopause. Treating the bleeding pattern is different from diagnosing its cause.

Track bleeding, cramps, pelvic pain, and any changes after insertion. Keep the device checks advised by your clinician and use the recommended pregnancy testing plan if a period is late and pregnancy is possible. Do not try to remove the device yourself. Discuss persistent heavy or disruptive bleeding so other causes can be assessed.

Seek urgent help for severe or worsening pelvic pain, faintness, fever, heavy bleeding that makes you feel unwell, or a positive pregnancy test with pain or bleeding. Arrange a check if you cannot feel the threads, they feel different, or bleeding becomes unexpectedly heavy after a settled pattern.

Ask what bleeding pattern is expected for you, when irregular bleeding should improve, how to check the threads, and whether another condition could explain ongoing heavy bleeding.