📌 Intrauterine Device (IUD)
A Highly Effective Long-Acting Reversible Contraceptive (LARC)
What is an IUD?
An Intrauterine Device (IUD) is a small, T-shaped contraceptive device inserted into the uterus by a trained healthcare provider. It is one of the most effective reversible methods of birth control, with a success rate of more than 99%.
Types of IUDs:
🟤 Copper IUD
Hormone-free.
Releases copper ions that are toxic to sperm.
Prevents fertilization.
Effective for up to 10 years.
Can also be used as emergency contraception if inserted within 5 days after unprotected intercourse.
🔵 Hormonal IUD (Levonorgestrel IUD)
Releases a small amount of levonorgestrel.
Thickens cervical mucus.
Thins the endometrium.
May suppress ovulation in some women.
Effective for 3–5 years (depending on the device).
Advantages
✅ More than 99% effective.
Long-lasting protection.
Rapid return of fertility after removal.
No daily pills required.
Safe during breastfeeding.
Hormonal IUD often reduces menstrual bleeding and dysmenorrhea.
Possible Side Effects
Copper IUD
Heavier menstrual bleeding.
Increased menstrual cramps.
Spotting during the first few months.
Hormonal IUD
Irregular spotting initially.
Lighter periods or amenorrhea.
Mild headaches or breast tenderness (occasionally).
Contraindications
Do not insert an IUD in women with:
Pregnancy.
Active pelvic inflammatory disease (PID).
Unexplained vaginal bleeding.
Current cervical or endometrial cancer.
Distorted uterine cavity.
Wilson disease or copper allergy (Copper IUD only).
Possible Complications
Expulsion (2–10%).
Uterine perforation (rare).
Pelvic infection (mainly within the first 20 days after insertion).
Ectopic pregnancy is uncommon overall because pregnancy is rare with an IUD, but if pregnancy does occur with an IUD in place, the likelihood that it is ectopic is higher than in pregnancies without an IUD.
Patient Education
Check the IUD strings monthly after menstruation.
Seek medical care if experiencing:
Severe pelvic pain.
Heavy bleeding.
Fever or foul-smelling vaginal discharge.
Missed period with pregnancy symptoms.
Inability to feel the strings or feeling the plastic part of the device.
Key Take-Home Message
The IUD is one of the safest, most effective, and longest-lasting reversible contraceptive methods available. Proper patient selection, skilled insertion, and regular follow-up help maximize benefits and minimize complications.
"Long-acting, highly effective, reversible—an IUD provides years of reliable contraception with minimal maintenance."
