IUD: Myths and Truths Every Woman Should Know

By Vanessa Manfredini | Biomedical Scientist and future Nutritionist

The IUD is one of the most effective contraceptive methods available, but it's also one that generates the most doubts and fears. "Does it cause weight gain? Cysts? Is it abortive?" 🤔 I hear (and have asked myself) many of these questions.

That's why today we're going to separate myth from truth, with serious information and without alarmism. And look, I talk about this with extra care, because I've used the copper IUD and today I use the hormonal one. So it's a topic I live firsthand! Come with me. 🌿

"Good information is what transforms fear into conscious choice."

First: there are two types of IUD

Before the myths, a quick map so you don't get lost:

🔸 Copper IUD: has no hormones. It acts by creating an environment that makes fertilization difficult. It can last many years.

🔸 Hormonal IUD (e.g., Mirena): releases a small dose of hormone directly into the uterus. It usually reduces menstrual flow and cramps.

Myth or truth? Let's look at the main ones 🔍

❌ "The IUD causes ovarian cysts." Myth (with nuances). The copper IUD neither prevents nor increases the chance of cysts. With the hormonal IUD, functional cysts may appear, but they are usually benign, painless, and disappear on their own without needing treatment.

❌ "The IUD is abortive." Myth. The IUD primarily acts by preventing fertilization, meaning it works before a pregnancy is established. It is a contraceptive method, not an abortive one.

❌ "The hormonal IUD causes weight gain." Myth for most. The hormone dose in the IUD is small and acts locally in the uterus. Evidence does not support weight gain as a rule, although each body reacts differently.

✅ "The IUD is very effective, but not 100%." Truth. It is among the most effective reversible methods, with less than 1% failure in the first year. But, as no method is infallible, pregnancy (though rare) can happen.

✅ "The hormonal IUD can reduce cramps and flow." Truth. By acting locally, it usually decreases menstrual volume and relieves cramps in many women.

✅ "The IUD can bring benefits beyond contraception." Truth. Studies suggest that IUD use is associated with a reduced risk of endometrial cancer, with indications of protection also for the ovary and cervix.

🌿 To delve deeper, also read: When an Ovarian Cyst Becomes an Emergency

What about choosing a method? 🌱

There is no universal "best" method; there is the best for you, at your current stage of life. This depends on your body, your history, your preferences, and a good conversation with your gynecologist.

⚠️ Important: this content is educational and does not replace medical evaluation. The choice and insertion of an IUD should always be done by a professional, who will consider your individual case. 💚

"The best method is the one that makes sense for your body and your life."

Did this content help you? 💚

Tell me in the comments: do you use or have you considered using an IUD? What questions do you still have? Share with that friend full of questions. Deciding about your own body starts with good information. 🌹

With care and science, Vanessa 🌹

📚 References and sources

This content is based on reliable materials and guidelines on contraception. Main references:

Ministério da Saúde and FEBRASGO, technical manuals on copper IUD and hormonal IUD.
Materials on functional cysts associated with hormonal IUDs and their benign evolution.
Reviews on IUD use and reduction of endometrial, ovarian, and cervical cancer risk.

The information is educational and does not replace individualized professional follow-up. The choice of contraceptive method should be made with your doctor.

IUD: Myths and Truths Every Woman Should Know

First: there are two types of IUD

Myth or truth? Let's look at the main ones 🔍

What about choosing a method? 🌱

📚 References and sources

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