Intrauterine device (IUD) insertion is a highly effective and long-acting method of contraception. However, before making a decision, it is important to understand key information thoroughly, including the benefits, limitations, possible side effects, and potential outcomes. This helps ensure you choose a contraceptive method that best suits your body and lifestyle with greater confidence.

Things You Should Know Before Getting an IUD

Pros of IUD
Cons of IUD
Side Effects After IUD Insertion
Possible Events and Warning Signs to Watch For

Pros of IUD

Provides long-term contraception
Highly effective
Suitable for individuals who are allergic to estrogen
Appropriate for a wide range of individuals
Can be used by those who cannot take estrogen-containing contraceptives
Fertility returns quickly, and pregnancy can occur immediately after removal

Long-Lasting Contraception

Provides effective birth control for 3–10 years, depending on the type of intrauterine device (IUD).

Highly Effective

An IUD is a highly effective contraceptive method 👍, with a pregnancy rate of only approximately 0.6%.

Reference: Asst. Prof. Dr. Usanee Sanmee, Family planning and contraception.

Suitable for a Wide Range of Individuals

Whether you are a postpartum mother who is breastfeeding or someone with a higher body weight, an IUD can generally be used safely. However, you should consult a doctor and undergo a pelvic examination before receiving the service.

📖 Read Now: Wondering if an IUD is right for you? If you want to know, don’t miss this article!

Suitable for Individuals Allergic to Estrogen

Copper IUDs are hormone-free and do not contain estrogen or any other hormones.

Ready for Pregnancy Immediately After Removal

Fertility returns immediately after the IUD is removed. This differs from contraceptive injections, which may require waiting up to one year or longer before pregnancy can occur.

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Can Be Removed Immediately if Any Abnormal Symptoms Occur

If any adverse effects or unexpected symptoms occur from the IUD, it can be removed immediately.

Cons of IUD

Must be inserted and removed by a physician
A pelvic examination is required before insertion
Mild discomfort may occur during insertion and removal
Menstrual cycle changes may occur
There is a risk of inflammation in some individuals
Some may experience slight discomfort during sexual intercourse

Must Be Inserted and Removed by a Physician

Insertion and removal of an IUD must be performed by a physician. A medical evaluation is necessary to assess the suitability of the individual’s body and the position of the uterus before the procedure. This helps ensure that the insertion is safe and effective.

A Pelvic Examination Is Required Before Insertion

Before inserting an IUD, the physician will perform a pelvic examination to assess the readiness and position of the uterus. This also helps screen for conditions that may be unsuitable, such as pregnancy or infection, in order to prevent possible complications.

For those who feel worried about a pelvic examination 😥, our clinic also has female doctors available. You can talk and ask questions before the examination to help you feel as comfortable and confident as possible 💖

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Mild Discomfort May Occur During Insertion and Removal

During insertion or removal of the IUD, you may experience mild pain or cramping similar to menstrual cramps. Slight spotting or light bleeding may also occur. These symptoms usually improve on their own within a short period of time.

Menstrual Changes May Occur 🩸

Copper IUD: May cause heavier or longer periods, especially during the first few months.
Hormonal IUD: Usually results in lighter periods, and in some cases, menstruation may stop altogether.

Individual responses may vary.

Consult a doctor to plan your contraception

There Is a Small Risk of Inflammation in Some Individuals ⚡️

After IUD insertion, there is a slight risk of developing pelvic inflammatory disease (PID), most commonly during the initial period after insertion. The risk can be minimized through proper pre-insertion screening and appropriate medical care.

In very rare cases, uterine perforation may occur. This is an uncommon complication, and the physician will assess the risk and monitor symptoms closely.

Mild Discomfort May Occur During Sexual Intercourse

In some users, the IUD strings may cause slight discomfort during sexual intercourse 🫂. A physician can adjust the length of the strings to improve comfort if needed.

If you are still concerned or unsure whether an IUD is right for you, you can consult a doctor before making a decision. A physician can assess your individual health condition and recommend the contraceptive method that best suits your body 💖

We care about every step of the process because your comfort and confidence matter most to us.

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Side Effects After IUD Insertion

Copper IUD: May cause heavier and longer menstrual periods during the first few months. Some users may also experience menstrual cramps.
Hormonal IUD: May cause periods to stop, or result in light and irregular spotting.
Slight Increase in Vaginal Discharge: Some users may notice more vaginal discharge than usual.
There is a small (rare) risk of pelvic inflammatory disease, which can be reduced through proper screening and insertion by a qualified physician.

Consult a doctor for IUD insertion

Possible Events and Warning Signs to Watch For

IUD Expulsion: This can occasionally occur, most commonly within the first year after insertion, with the risk decreasing in subsequent years. If you notice anything unusual, you should see a doctor for evaluation.
Malposition: An improperly positioned IUD may reduce contraceptive effectiveness. This can be detected during follow-up examinations with your doctor.
Unable to Feel the IUD Strings: Not being able to feel the strings may make removal more difficult. Regular follow-up visits are recommended to ensure the IUD remains in the correct position.
IUD Breakage (Very Rare): In rare cases, the IUD may break. If you experience unusual symptoms such as severe abdominal pain, seek medical attention promptly.
Perforation:This is a very rare complication, occurring in approximately 1 in 1,000 cases. Symptoms may not appear immediately, but if you experience severe or unusual abdominal pain, you should seek medical evaluation as soon as possible.

Is Getting an IUD a Good Option? An IUD is considered a great choice for those who want long-term contraception, prefer not to worry about taking a pill every day, and are looking for a highly effective method. However, there are still some considerations to keep in mind. It is important to consult a doctor to choose the type that best suits your body and lifestyle.

If you still feel concerned or unsure, you are welcome to consult a physician before receiving the service. We provide friendly guidance and attentive care every step of the way.

Reference

Family planning and contraception, Asst. Prof. Dr. Usanee Sanmee, Faculty of Medicine, Chiang Mai University.
Intrauterine Devices (IUDs): Dr. Dhammapoj Jeerakornpassawat and Asst. Prof. Dr. Tawiwan Panthasri, Faculty of Medicine, Chiang Mai University
ห่วงอนามัย…สำหรับการคุมกำเนิดระยะยาว, Associate Professor Dr. Nongluck Sookvanichsilp, Drug Information Center, Faculty of Medicine, Mahidol University

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Jittiwat Amnouypon ,M.D.
General Practitioner

Latest edit : 20/02/2026

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