Does iud lower estrogen levels?

Women have different modes of birth control available to them. One of these is Intrauterine Device (IUD). The device has two types – copper IUD and hormonal IUDs. Women who use hormonal IUDs may experience different kinds of side effects, one of which is a drop in estrogen level. This article will explore the effects of hormonal IUDs on estrogen levels and how it affects women’s health.

What is An IUD?

An IUD is a tiny, T-shaped device inserted into the uterus to prevent pregnancy. It is one of the most popular types of birth control used by women since it is highly effective and convenient. Many women prefer using IUD over other birth control methods because they do not have to worry about taking birth control pills every day or using other contraceptives during sexual intercourse.

Types of IUDs

Hormonal IUDs

Hormonal IUDs release a hormone called progestin into the uterus. The hormone makes the cervical mucus thick, creating a barrier that prevents sperm from reaching the egg. The hormonal IUD can also prevent ovulation, so the egg does not leave the ovary. Some women who use hormonal IUDs may experience side effects that affect their hormone levels, including a drop in estrogen levels.

Copper IUDs

Copper IUDs are non-hormonal birth control devices. They work by releasing copper ions that create an environment that is toxic to sperm. Copper IUDs can remain in the uterus for up to 10 years and can be removed anytime if the user decides to get pregnant or switch to another birth control method.

How Does Hormonal IUD Affect Estrogen Levels?

Hormonal IUDs work by releasing a hormone called progestin into the uterus. Progestin prevents ovulation and thickens the cervical mucus, inhibiting the sperm’s passage. The progestin hormone is not the same as estrogen, which means that the hormonal IUD does not actually lower estrogen levels. However, some women who use hormonal IUDs may experience a side effect of having low estrogen levels.

What Are The Side Effects Of Low Estrogen Levels?

Low estrogen levels cause different symptoms in women. Some women may experience vaginal dryness or discomfort during sexual intercourse, mood swings, hot flashes, and night sweats. Women with low estrogen levels may also experience irregular menstrual periods or have no menstrual periods at all.

There are, however, some benefits to lowered estrogen levels. For instance, women with estrogen-sensitive tumors may benefit from using hormonal IUDs, as low estrogen levels may prevent the cancer cells from growing.

What Are The Benefits Of Using IUDs?

  • IUDs are highly effective at preventing pregnancy.
  • IUDs are convenient and do not require everyday maintenance.
  • IUDs are long-term, so women do not need to worry about getting pregnant after sex.
  • Women can use IUDs even after childbirth without breastfeeding.
  • IUDs are reversible and can be removed anytime without causing any damage to the reproductive system.
  • Copper IUDs do not contain hormones, making them suitable for women who cannot tolerate hormonal contraceptives.


Hormonal IUDs do not lower estrogen levels. However, some women may experience side effects of low estrogen levels, such as vaginal dryness, discomfort during sex, hot flashes, mood swings, and irregular periods. Women who experience these symptoms should consult with their doctor to choose the appropriate birth control method. Hormonal IUDs offer many benefits, including high effectiveness, long-lasting coverage, and convenience, making them an attractive option for women looking for birth control methods.


Here are some frequently asked questions about ‘Does iud lower estrogen levels?’

1. Do Hormonal IUDs Lower Estrogen Levels?

No, hormonal IUDs release progestin hormone, not estrogen, but some women may experience hormonal changes that affect their estrogen levels.

2. What Can Cause Low Estrogen Levels?

Low estrogen levels can be caused by several factors, including hormonal changes, menopause, ovary failure, or having a hysterectomy or oophorectomy.

3. Does Copper IUD Affect Estrogen Levels?

No, copper IUD is a non-hormonal birth control method, which means it does not affect estrogen levels.

4. Can Hormonal IUD Cause Weight Gain?

Hormonal IUDs can cause weight gain in some women, but it is not a common side effect. Women who experience sudden weight gain or any other side effects should consult with their doctor.

5. Can Women with Estrogen-Sensitive Tumors Use Hormonal IUDs?

Yes, women with estrogen-sensitive tumors may benefit from using hormonal IUDs, as they may help lower estrogen levels that may contribute to the growth of cancer cells.


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  • Blithe, D. L., & Harrison-Woolrych, M. (2010). Hormonal contraception: risks and benefits. Best Practice & Research Clinical Obstetrics & Gynaecology, 24(2), 137-149.
  • Winner, B., Peipert, J. F., Zhao, Q., Buckel, C., Madden, T., Allsworth, J. E., & Secura, G. M. (2012). Effectiveness of long-acting reversible contraception. New England Journal of Medicine, 366(21), 1998-2007.