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If you have an intrauterine device (IUD), figuring out whether you're in perimenopause can feel tricky. Changes in your menstrual cycle are often one of the first signs of perimenopause. However, some IUDs can make periods lighter, less frequent, or stop them altogether, making these changes harder to notice.
However, perimenopause affects more than your periods. Symptoms such as hot flashes, sleep problems, mood changes, and vaginal dryness can offer other clues that your hormones are shifting.
Here's how different types of IUDs can affect what you notice — and seven signs of perimenopause to watch for.
Perimenopause is the time leading up to menopause. During this stage, hormone levels, especially estrogen and progesterone, rise and fall. This often causes changes in menstrual cycles. Menopause is defined as 12 consecutive months without a period.
However, IUDs often change your periods. Hormonal IUDs release a form of progestin called levonorgestrel, which can:
Available brands of hormonal IUDs in the U.S. include Mirena, Liletta, Kyleena, and Skyla.
Nonhormonal IUDs, also called copper IUDs, are contraceptives that don’t contain hormones. However, they can still cause heavy menstrual bleeding or crampy periods and
may keep cycles more regular than hormonal IUDs.
Paragard is the only copper IUD available in the U.S.
If you have a hormonal IUD, you might not notice the classic irregular periods of perimenopause. If you have a copper IUD, you may have cycle changes, but they can be similar to bleeding changes during perimenopause.
Hormonal IUDs are sometimes used as part of perimenopause care, particularly to help manage heavy bleeding or protect the uterine lining when taking estrogen therapy.
Using an IUD for contraception is also an important part of perimenopause care, since pregnancy is still possible during perimenopause.
Even if your periods don’t change much, other menopause symptoms can signal that you’re in perimenopause. These perimenopause symptoms still happen when you have an IUD.
Sudden waves of heat, flushing, or sweating, especially at night, are among the most common perimenopause symptoms. You might wake up drenched in sweat or feel overheated without a clear cause.
Hormonal shifts can disrupt sleep, even if you don’t have hot flashes. You may have trouble falling asleep, wake up often during the night, or feel tired despite enough time in bed.
Fluctuating hormones can affect your emotions. You may notice yourself getting more irritable or anxious than usual. Some people feel sad, not like themselves, or less able to handle stress than usual.
Declining estrogen levels can affect vaginal and vulvar tissues. Because IUDs don’t contain estrogen, they don’t prevent genitourinary syndrome of menopause. Symptoms include dryness, pain with sex, or increased irritation.
Sex drive may shift during perimenopause due to hormonal, physical, and emotional factors. You might have a lower interest in sex, changes in arousal, or discomfort during sex.
Some perimenopausal women report cognitive symptoms such as:
These symptoms are often subtle but noticeable over time.
Hormonal changes can influence how your body stores fat and uses energy. You might notice weight gain, especially around the abdomen. Some women have difficulty losing weight, even if their eating and exercise habits haven’t changed.
If you’re unsure whether symptoms are caused by your IUD or perimenopause, talk with your healthcare provider. Consider reaching out if you have new or worsening symptoms that are disrupting your daily life or unexplained bleeding changes.
Blood tests, such as a follicle-stimulating hormone (FSH) test, are sometimes used but don’t always give a clear answer during perimenopause. Diagnosis is often based on symptoms and age.
Paying attention to your symptoms and their patterns can help you better understand where you are in the menopause transition, even without clear cycle changes.
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