The Mirena Coil is more than 99% effective as a contraceptive. It is not only used as contraception, but for the last 25 years, Gynaecologists have used the Mirena coil to treat heavy menstrual periods, reduce the pain of adenomyosis, and help settle the symptoms of premenstrual syndrome. I also used the Mirena coil as progesterone support for the menopause.

The Mirena Coil is similar to other IUDs, but instead of releasing copper to stop a pregnancy developing, it releases a progesterone into the uterus. Progesterones will thicken the cervical mucus and thin the lining of the uterus.

The major advantage of the Mirena coil is that it will work for 5 years. Periods often become lighter, and can stop completely. This is normal. Once removed, it is possible to become pregnant.

If you are over 45, when the Mirena Coil is fitted, it can be left in until the menopause.

Fitting is straightforward, and takes approximately five to ten minutes, following a consultation. I have specialized in Mirena Coil fitting in London for over a decade.

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What is the Mirena Coil?

The Levonorgestrel releasing intrauterine system (Mirena coil) can prevent pregnancy for up to 5 years, and on the company’s website can prevent pregnancy for up to 8 years.

The levonorgestrel Mirena Coil will release Levonorgestrel (a progesterone) steadily over a five-year period, or until it is removed. Its direct action is on the lining of the uterus, the endometrium. It controls the development of the endometrium, and will make it thinner so there is less bleeding every month. This is why it is an effective treatment for heavy menstrual bleeding. Most women will notice a marked reduction in their menstrual flow, and some women will find their periods stop. It has been used worldwide since 1995, and has radically changed Women’s health. As a result very few women now undergo hysterectomy for heavy menstrual bleeding.

What are the benefits of this treatment?

I offer the Mirena coil not only as an effective contraception, but also in the treatment of heavy menstrual periods, resolving the symptoms of Premenstrual syndrome, and as menopause support.

A Mirena coil may also prevent the recurrence of small fibroids in the uterus.

In summary, the Mirena Coil is 99% effective at preventing pregnancy, and is a successful treatment option for heavy menstrual periods and PMS, and since its introduction in 1995 has reduced the need for hysterectomy by 60%.

Mirena Coil FAQ's

How effective is it at preventing pregnancy?

It is 99% effective at preventing pregnancy.

What are the side effects?

The Mirena Coil can cause irregular spotting and bleeding, and also some PMS symptoms. Long-term studies have shown that 80% of patients remain on treatment long-term. Patients normally make a decision to keep the Mirena coil by 3 months.

Is Mirena Coil insertion painful?

The fitting will take five to ten minutes, and I often place the coil under ultrasound guidance. I use local anaesthetic to prevent pain, and I advise patients to take a painkiller an hour before insertion.

How long can you use Mirena Coil for?

I advise women that they can use the Mirena Coil as contraception up until the menopause, and after the menopause as uterine protection with oestrogen HRT.

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