Mirena IUD or IUCD, increasingly used these days

This patient had a Mirena IUD or IUCD inserted into the uterine cavity for severe dysmenorrhoea and prolonged menstrual bleeding, or polymenorrhoea. The Mirena IUD is less visible to ultrasound imaging compared to copper T and older conventional IUCD or IUD devices. 

It is important to do an ultrasound scan of the uterus regularly, at least once a year to confirm the position of the Mirena IUD. 

The horizontal bar of the IUD is visible better than the vertical segment. 

Sagittal section shows the horizontal bar of the Mirena IUD in section. 

Transverse section through the fundus of uterus shows the horizontal bar of the Mirena IUD as an echogenic linear segment. 

Color Doppler ultrasound tried. No twinkle or other artefact seen. 

What is the Mirena IUD?

1. Mirena is a type of intrauterine device (IUD) that contains the hormone levonorgestrel.
2. It is primarily used as a form of birth control, but can also be used to treat heavy menstrual bleeding.
3. The device is inserted into the uterus by a healthcare provider and can last up to 5 years.
4. Ultrasound imaging may be used to ensure proper placement of the device.
5. The device works by releasing a small amount of hormone that thickens cervical mucus and thins the uterine lining, preventing sperm from reaching the egg.
6. Mirena has a high success rate in preventing pregnancy and is a convenient long-term birth control option.

Ultrasound imaging of the Mirena IUD:

During an ultrasound scan, the Mirena IUD may be visualized as a small, thin, T-shaped structure within the uterus. The device typically appears as a hyperechoic (bright) object on the ultrasound image, surrounded by hypoechoic (dark) fluid in the endometrial cavity. The IUD should be located in the fundus of the uterus and the arms of the device should be visible and parallel to the uterine walls. Proper placement of the device is important for its effectiveness as birth control and to prevent complications. Ultrasound imaging can help confirm correct placement and detect any potential issues such as perforation, displacement or expulsion of the IUD. 

What is the role of Mirena IUD in excessive menstrual bleeding?

Mirena IUD is a hormonal contraceptive device that can also be used to treat excessive menstrual bleeding (menorrhagia). The device releases a low dose of the hormone levonorgestrel into the uterus, which helps to thin the lining of the uterus and reduce the amount of menstrual bleeding.

Mirena is inserted into the uterus by a healthcare provider and can provide relief from heavy menstrual bleeding for up to 5 years. The device is a convenient option for women who may have difficulty taking hormonal pills or who do not want to undergo a surgical procedure to address their menstrual bleeding.

Studies have shown that Mirena can significantly reduce menstrual bleeding and improve quality of life for women who suffer from menorrhagia. Women who use Mirena for this purpose should have regular follow-up appointments with their healthcare provider to monitor their symptoms and ensure the device remains in place. 

For more on this visit:

sonography of uterus and Mirena IUD