What should you know about contraceptive implant replacement?

The timing depends on the specific implant, when it was inserted, your health history, and whether you want to continue using this method. Arrange a review before the recommended replacement date so you can discuss continuity and alternatives.

A contraceptive implant is a small flexible rod placed under the skin of the upper arm. It releases a progestogen hormone that mainly prevents ovulation and also changes cervical mucus, making it harder for sperm to reach an egg.

Replacement is a minor procedure rather than a process that makes the old rod work again. A clinician numbs the skin, makes a small opening, removes the old rod, and places the new rod under the skin. The arm may feel tender or bruised for a short time.

If the rod cannot be felt, seems to have moved, or has broken, tell the clinician before removal. Imaging or a specialist referral may be needed to locate it safely. Do not try to remove or push the rod yourself.

Book an appointment early enough to avoid a gap in contraception. Bring the date and location of your original insertion if you have them, and mention any changes in bleeding, medicines, allergies, or medical conditions.

Your clinician may check that pregnancy is unlikely and review medicines that can reduce hormonal contraception effectiveness, including some treatments for seizures, tuberculosis, or HIV, as well as certain herbal products. Use condoms or another advised method if there may be a gap or if your clinician recommends backup protection.

After the procedure, keep the dressing in place for the time advised and keep the wound clean and dry according to the aftercare instructions. Avoid pressing on the area while it is sore, and check that you can feel the new rod once swelling has settled.

Contact the clinic promptly if the insertion or removal site becomes increasingly red, hot, swollen, painful, or starts draining fluid, or if you develop a fever. These signs can indicate infection or a wound problem that needs assessment.

Seek urgent medical help for severe arm pain, marked swelling, new weakness or numbness, chest pain, sudden breathing difficulty, or sudden severe headache or vision changes. If the new rod cannot be felt after the expected swelling improves, arrange a review rather than assuming it is in place.

Unexpected bleeding changes can happen with the implant, but very heavy bleeding, faintness, or a positive pregnancy test should be discussed promptly. Sudden lower abdominal pain with a positive pregnancy test needs urgent assessment.

Ask which replacement date applies to your specific rod, whether you need backup contraception before or after the appointment, and whether your current medicines affect the method.

You can also ask where the new rod will be placed, how to care for the wound, what bleeding pattern to expect, and which alternative would suit you if you no longer want an implant.