The front of your upper thigh is one of three approved injection sites for Wegovy, and many people prefer it because you can sit down during the process and see exactly what you’re doing. The entire injection takes about 10 seconds once you press the pen to your skin. Here’s how to do it correctly from start to finish.
Before You Start: Check the Pen
Take the pen out of the refrigerator and let it sit for a few minutes so it’s not ice-cold against your skin. While you wait, look through the small window on the pen. The liquid inside should be completely clear and colorless. Air bubbles are normal and won’t affect your dose, but if the liquid looks cloudy, discolored, or contains particles, don’t use that pen. Contact Novo Nordisk’s patient care line (1-833-934-6891) for a replacement.
Also check the expiration date on the label and make sure the pen hasn’t been out of the refrigerator for more than 28 days. Wegovy should be stored between 36°F and 46°F in its original carton. If refrigeration isn’t available, it can stay at room temperature (below 86°F, out of direct light) for up to 28 days before it needs to be discarded.
Where Exactly on the Thigh to Inject
You’re aiming for the front of your upper thigh, roughly in the middle third between your knee and your hip. Avoid the inner thigh, the outer side near your hip bone, and the area directly above or around your knee. The front of the thigh has a good layer of subcutaneous fat and provides a naturally firm surface, which makes it easier to press the pen against your skin with enough pressure to trigger the injection.
If you inject Wegovy in the thigh every week, rotate between your left and right leg, and shift the exact spot by at least an inch or two each time. Repeated injections in the same location can irritate the skin or cause the tissue underneath to change texture over time.
Step-by-Step Injection Process
Wash your hands with soap and water. Clean the injection area on your thigh with an alcohol swab and let it air-dry completely. Injecting into wet skin can sting.
Pull off the pen cap. You don’t need to prime Wegovy pens or dial a dose. They come prefilled and preset for a single use. Place the pen flat against your thigh, pressing it firmly into the skin. Don’t pinch the skin on your thigh the way you might with a stomach injection. The thigh is firm enough on its own.
Press and hold the dose button. You’ll hear a first click, and the yellow bar visible in the pen window will begin to move. This means the injection has started. Keep the pen pressed firmly against your skin the entire time. Do not lift or tilt it. After about 10 seconds, you’ll hear a second click, and the yellow bar will stop moving. That’s your signal that the full dose has been delivered. Only then should you pull the pen straight away from your skin.
What to Do If Something Goes Wrong
If you press the dose button and don’t hear a click or see the yellow bar move, you likely aren’t pressing hard enough. Push the pen more firmly into your thigh and try again. The pen needs solid contact with your skin to release the needle and start delivering medication.
If you notice a drop of liquid on your skin after removing the pen, don’t panic. A small amount of leakage is common and won’t make your dose less effective. This usually happens when the pen is pulled away too soon (before the yellow bar fully stops) or when it wasn’t pressed firmly enough during the injection. You do not need to inject additional medication to make up for a small leak.
If the pen appears damaged, bent, or cracked, or if it simply won’t fire at all, discard it without forcing it. Use a new pen and call 1-833-934-6891 to report the issue and get a replacement.
After the Injection
You might see a tiny drop of blood at the injection site, which is normal. You can press a cotton ball or tissue against it briefly, but don’t rub the area. Some mild redness, slight swelling, or itching at the site is common in the first few minutes and typically fades on its own. If you notice bruising, it usually resolves within a few days and doesn’t mean you did anything wrong.
Place the used pen directly into a sharps disposal container. The FDA recommends rigid plastic containers with tight-fitting, puncture-resistant lids. If you don’t have a dedicated sharps container, a heavy-duty plastic household container like a laundry detergent jug works as an alternative. Don’t throw used pens in your regular trash or recycling. Once the container is about three-quarters full, follow your local guidelines for disposal, which vary by community. Many pharmacies and hospitals also accept full sharps containers.
Why Some People Prefer the Thigh
The thigh is a popular choice for self-injection because you can sit in a chair, rest your leg flat, and clearly see the injection site the entire time. This sense of control matters, especially if you’re new to injectable medications or feel nervous about the process. The firmer surface of the thigh also makes it easier to apply consistent pressure on the pen, which reduces the chance of leakage or an incomplete dose. If you find injecting into softer areas like the stomach uncomfortable or difficult to manage, the thigh is worth trying.
You can switch between injection sites from week to week. Using your thigh one week, your stomach the next, and your upper arm after that is perfectly fine as long as each injection goes into a slightly different spot within that area.