Nexplanon FAQ

What is Nexplanon?

Nexplanon is a long-acting, reversible contraceptive implant—a small, flexible rod about the size of a matchstick—inserted under the skin of your upper arm. It provides up to 3 years of pregnancy prevention and is sometimes simply called “the implant.”

How Does Nexplanon Work?

Nexplanon contains etonogestrel, a form of the hormone progestin, which:

• Prevents ovulation (stops the ovaries from releasing eggs)
• Thickens cervical mucus, making it harder for sperm to reach the egg
• Thins the uterine lining, making implantation less likely

Source:Nexplanon Manufacturer Site(opens in new window)

How Long Does Nexplanon Last?

Nexplanon is effective for up to 3 years. After that, it must be removed or replaced. The benefit of the implant is low maintenance—once it’s in, you don’t have to think about daily or monthly contraception.

How Is Nexplanon Inserted and Removed?

Once your healthcare provider determines you're a good candidate, they will:

• Numb a small area of your upper arm
• Insert the implant just under the skin using a specialized applicator

The procedure typically takes only a few minutes.

When it’s time for removal or replacement:

• Your provider will again numb the area
• Make a small incision and remove the implant
• A new one can be inserted during the same visit if desired

What Can I Expect After Insertion?

You may experience some mild pain, swelling, or bruising at the insertion site, which usually resolves within a few days to a month. Most users don’t feel the implant after the initial healing period. Contact your provider if symptoms persist or worsen.

How Effective Is Nexplanon?

Nexplanon is over 99% effective, making it one of the most reliable birth control methods available. Fewer than 1 in 100 women will become pregnant during the first year of use.

Source:Nexplanon Manufacturer Site(opens in new window)

Will It Leave a Scar?

There is a small risk of scarring at the insertion or removal site. However, with proper care and healing, most people have little or no visible mark after the area heals.

What Are the Possible Side Effects of Nexplanon?

Common side effects include:

• Irregular bleeding or spotting, especially in the first 6–12 months
• Headaches, mood changes, weight gain, or acne in some individuals
• Bruising or soreness at the insertion site

If side effects are bothersome, the implant can be removed at any time.

Source:Nexplanon Manufacturer Site(opens in new window)

When Should Nexplanon Be Removed?

The implant should be removed:

• After 3 years (to prevent reduced effectiveness)
• Earlier, if side effects are intolerable or if you wish to switch methods

Once removed, you are no longer protected from pregnancy and should use another form of birth control if needed.

How Might Nexplanon Affect My Menstrual Cycle?

Changes in your period are very common, especially in the first year. You may experience:

• Irregular bleeding
• Lighter, heavier, or no periods at all

These changes are normal and not a sign of pregnancy. Most people find that their cycle stabilizes over time.

Source:Nexplanon Manufacturer Site(opens in new window)

Does Nexplanon Protect Against STIs?

No. Nexplanon does not protect against sexually transmitted infections (STIs). To reduce your risk, use condoms if you are unsure of your partner’s status or are not in a mutually monogamous relationship.