Where Do You Inject Wegovy? Injection Sites Explained

The three sites used for Wegovy injections are well established for subcutaneous delivery and are the same areas used for many other injectable medicines:

• Abdomen: Anywhere in the fatty area of the stomach, at least a few centimetres away from the navel. This is the most commonly used site.
• Front of the thigh: The outer, fatty area of the upper thigh. Easier to reach when self-injecting.
• Upper arm: The back or outer fatty area of the upper arm — often easier if someone else is administering the injection.

All three sites are considered equally effective for absorption. Your choice may simply come down to which is most comfortable and accessible for you. The most important thing is that you rotate — moving around within a site and between sites over successive weeks — rather than injecting in exactly the same spot repeatedly. Injecting the same spot too often can cause localised skin changes such as lumps or hardened tissue.

If you are curious how injection site guidance compares across similar medicines, it is worth reading about where to inject Mounjaro or commonly chosen Mounjaro injection sites — the principles are broadly similar. For a broader look at the world of weekly weight-loss injections, our guide to weight-loss injections covers the wider context.

Always refer to the patient information leaflet that came with your pen and follow the specific guidance your prescriber or doctor has given you — they know your individual circumstances. If you notice persistent redness, swelling, or any skin reaction at an injection site, contact your healthcare professional.

Remembering which site you used last week — and exactly where within that site — is surprisingly easy to lose track of over months of weekly injections. GLP Trackr's injection-site tracking feature is built specifically for this: log each injection with the site you used, and the app keeps a running rotation history so you always know where to go next. No mental arithmetic, no guesswork.

Alongside site tracking, the app logs your dose and injection date each time, giving you a clear record of every shot in one place. And if you ever need a nudge, dose reminders mean your weekly schedule stays on track without having to remember it yourself.

Having a tidy injection log also comes in handy at prescriber appointments — you can show exactly what you have taken and when, which can make those conversations more productive. You might also find it useful to read about the general process of self-injecting a weekly GLP-1 pen for additional context.

GLP Trackr is free to try for 7 days — download it on the App Store or Google Play and let the app handle your rotation history from your very first dose.

GLP Trackr is a tracking tool, not a substitute for clinical guidance. Any questions about your injection technique, site reactions, or how to use your pen should be directed to your prescriber, doctor, or pharmacist.