Where Is Nexplanon Placed? Implant Location, Procedure & What to Expect

Where Is Nexplanon Placed

Nexplanon is placed under the skin on the inner side of the non-dominant upper arm, roughly 3 to 4 inches above the elbow. A trained healthcare provider inserts the matchstick-sized rod during a quick in-office procedure using a local anesthetic. The implant sits in the subcutaneous tissue, between the skin and the muscle, where it releases the progestin etonogestrel to prevent pregnancy for up to three years.

What to Expect During Insertion

Before insertion, the clinician cleans the inner arm and marks the placement site. A local numbing shot is given, and a special applicator pushes the implant through a small incision. The incision is usually closed with a bandage or a couple of stitches, and a pressure bandage is applied to reduce swelling. The entire process takes only a few minutes.

After the Procedure

Mild bruising, soreness, or swelling at the site is normal for a few days. Patients are advised to keep the arm clean and avoid heavy lifting with that arm for a short period. A follow-up visit may be scheduled to confirm the implant is in place and feels correct under the skin.

How a Provider Checks Placement

Once inserted, Nexplanon should be palpable just under the skin. If the rod cannot be felt or if there is concern about its position, an ultrasound may be used to confirm the location. In rare cases where placement is incorrect or complications arise, the implant can be removed and replaced.

Why the Inner Upper Arm Is Chosen

The inner upper arm is chosen because it provides easy access for the clinician, allows for reliable palpation, and has a lower risk of major nerve or blood vessel injury compared to other sites. It also keeps the implant discreet under most clothing.

Signs Placement May Be a Problem

• Inability to feel the implant under the skin
• Sudden change in arm pain or numbness
• Signs of infection, such as redness, warmth, or drainage
• The implant appears to have shifted or become visible

Any of these warrant a prompt visit to a healthcare provider. Nexplanon is one of the most effective forms of birth control, and correct placement is central to that effectiveness. Anyone considering the implant should discuss their medical history and any concerns about the arm site with their clinician beforehand.