Frequently Asked Questions About Nexplanon Implant

What is the Nexplanon implant?

The Nexplanon implant is a small, flexible rod that contains 68 mg of etonogestrel, a synthetic progestin. A trained healthcare professional inserts one rod just under the skin on the inner side of the non-dominant upper arm, where it steadily releases hormone over time to prevent pregnancy.

This birth control implant works mainly by preventing ovulation, thickening cervical mucus so sperm have a harder time reaching an egg, and changing the uterine lining. Because it is already in place, its effectiveness does not depend on remembering a daily, weekly, or monthly task.

Nexplanon is also radiopaque, meaning it can be seen on an X-ray if a clinician needs to locate it. That feature matters if the implant cannot be felt under the skin or if there is concern that it was inserted too deeply or moved from its original position.

How long does Nexplanon last, and how effective is it?

Nexplanon is FDA-approved in the United States to prevent pregnancy for up to 5 years. The FDA approved the extension from 3 years to 5 years on January 16, 2026, so older articles, reminder cards, or clinic materials may still mention the former 3-year timeline.

The implant is considered more than 99% effective; the CDC describes implant effectiveness as fewer than 1 pregnancy per 100 users in the first year with typical use. This high effectiveness is one reason many people choose the implant when they want contraception that does not require timing around sex or a daily routine.

You should still keep track of your insertion date and the date by which the implant should be removed or replaced. If you want ongoing pregnancy prevention after year 5, your clinician can remove the old implant and may place a new one during the same visit if appropriate.

What insertion and removal are like

Insertion is an in-office procedure performed by a trained healthcare professional. Your clinician will confirm that you are not pregnant, clean and numb the area, insert the rod with a special applicator, and then check that the implant can be felt in your arm. 

The timing of insertion affects whether you need backup contraception. If the implant is placed within the first 5 days after menstrual bleeding starts, the CDC says no additional contraceptive protection is needed; if it is placed at another time, your clinician may recommend a backup method such as condoms for 7 days.

Removal can happen any time you want to stop using Nexplanon, and it must happen by the end of the fifth year. A clinician numbs the skin, makes a small incision, removes the rod, and discusses whether you want another implant or a different method.

Because improper insertion or removal can increase the risk of complications, Nexplanon is available only through a REMS program that requires provider certification. The FDA approved the REMS program to reduce complications linked to improper insertion and removal, including risks related to deep placement, migration, or difficulty removing the implant.

Before your appointment, it is reasonable to ask:

• Whether the clinician is trained and certified to insert and remove Nexplanon.

• What you should do if you cannot feel the implant after insertion.

• Whether you need backup contraception based on your cycle timing.

• What symptoms after insertion or removal should prompt a call.

• How replacement works if you want continuous coverage after 5 years.

Nexplanon side effects are usually manageable, but bleeding changes are common

The most common Nexplanon side effects involve menstrual bleeding changes. You may have spotting between periods, longer or shorter bleeding, heavier or lighter bleeding, unpredictable timing, or no bleeding at all. In clinical studies described by the manufacturer, 1 in 10 users stopped using Nexplanon because of an unfavorable bleeding pattern.

These changes can be frustrating even when they are not dangerous. Some people are relieved to have lighter periods or no bleeding, while others find irregular spotting disruptive, stressful, or inconvenient. If bleeding is heavy, prolonged, sudden, or very different from what your clinician told you to expect, you should contact a healthcare professional for guidance.

Other side effects may include headache, acne, breast pain, weight gain, mood changes, depressed mood, and vaginitis. Not everyone experiences these, and the right next step depends on the severity, timing, and whether symptoms are affecting your daily life.

A practical way to handle side effects is to track what is happening rather than guessing from memory. Write down bleeding days, flow level, pain, mood changes, headaches, acne flares, and any new medications. That record can help your clinician decide whether reassurance, treatment for bleeding, evaluation for another cause, or removal makes the most sense.

Safety, eligibility, and when to call a clinician

Nexplanon is not the right method for everyone. According to official safety information, you should not use it if you are pregnant or think you may be pregnant, have or have had blood clots, have liver disease or a liver tumor, have unexplained vaginal bleeding, have or have had breast cancer or another progestin-sensitive cancer, or are allergic to anything in Nexplanon. 

Some medications and supplements can also affect hormonal birth control. If you take seizure medications, certain HIV medicines, tuberculosis medications, herbal products such as St. John’s wort, or other long-term prescriptions, tell your clinician before insertion and whenever your medication list changes. The CDC notes that drug interactions can matter for implant users, especially when hormone levels are lower later in use.

Call a healthcare professional promptly if you think you may be pregnant, cannot feel the implant, feel that it has bent or broken, have severe arm pain, have signs of infection at the site, or develop heavy and prolonged bleeding. You should also seek urgent care for symptoms that could suggest a blood clot or serious vascular event, such as chest pain, shortness of breath, severe leg pain, or sudden neurological symptoms.

How does Nexplanon compare with other birth control options?

Nexplanon may be a strong choice if you want highly effective contraception that is private, reversible, and not dependent on daily use. Unlike an IUD, it is placed in the arm rather than the uterus, so insertion does not involve placing a device through the cervix. Unlike the pill, patch, or ring, it does not require frequent refills or user timing to keep working. (cdc.gov)

It may be less appealing if predictable bleeding is very important to you, if you strongly prefer a method you can stop on your own without an appointment, or if you have a medical reason not to use progestin-only contraception. Some people also worry about whether a partner can feel it or whether it will be visible; for many users it is discreet, but you should expect to be able to feel the rod under the skin when you press on the area.

Use these decision points when comparing methods:

• Routine: Choose an implant if you want “set it and forget it” contraception; consider pills, patches, or rings if you prefer more personal control.

• Bleeding preferences: Ask how each method may affect periods, especially if irregular spotting would be hard for you.

• Estrogen needs: Nexplanon is progestin-only, which may matter if you have been told to avoid estrogen.

• STI protection: Nexplanon prevents pregnancy but does not protect against STIs, including HIV; condoms can reduce STI risk when used correctly and consistently.

• Future pregnancy plans: If you might want pregnancy soon after stopping contraception, discuss timing and an alternative plan before removal.

Cost and insurance coverage vary by plan

Many insurance plans cover birth control methods and counseling without copay or coinsurance when prescribed and provided by an in-network clinician, but details can vary by plan and setting. HealthCare.gov states that Marketplace plans must cover FDA-approved contraceptive methods and counseling for women as prescribed by a healthcare provider, and this includes implanted devices. 

Even when the implant itself is covered, there may be plan-specific rules, network requirements, or costs related to insertion and removal. Before your visit, ask your insurer whether Nexplanon, insertion, removal, replacement, and any required consultation are covered, and whether the clinician and facility are in network.

Life after removal

Nexplanon is reversible, and pregnancy prevention ends after the implant is removed. If you do not want to become pregnant right away, plan your next contraceptive method before the removal appointment, not after it. 

Your clinician can help you choose a bridge method, replace the implant, or switch to another option such as an IUD, pill, patch, ring, shot, condoms, or another method that fits your health history and preferences. The best choice is the one you understand, can access, and feel comfortable using voluntarily.

Key takeaways

Nexplanon is a highly effective birth control implant that now has FDA approval for up to 5 years of pregnancy prevention in the United States. Its biggest everyday tradeoff is the possibility of irregular bleeding, although other side effects can occur.

If you are considering the nexplanon implant, talk with a trained healthcare professional about your health history, medications, bleeding preferences, cost questions, and what to do if side effects appear. Clear counseling before insertion makes the method feel less mysterious and helps you decide whether its convenience is worth its possible downsides.