Everyday life
Where to inject Wegovy: stomach, thigh or arm?
Any of the three. The label lists the abdomen, thigh and upper arm, with similar semaglutide exposure from all three. What it asks for is rotation: a different spot each week, 2 inches from the belly button, away from scars.
The Oolite team, from the FDA labels
Sources checked Oct 27, 2026
Published Nov 5, 2026
Updated Oct 27, 2026 · 2 min read
The short answer
Any of the three. The label lists the abdomen, thigh and upper arm, with similar semaglutide exposure from all three. What it asks for is rotation: a different spot each week, 2 inches from the belly button, away from scars.
What the label says
The dosing section (§2.1) names three areas and gives one instruction about them:
From the labelInject WEGOVY subcutaneously in the abdomen, thigh, or upper arm. The time of day and the injection site can be changed without the need for a dosage modification.
From the labelRotate injection sites with each dose.
On the question people actually ask, which site is best, the answer is in the pharmacology section (§12.3):
From the labelSimilar exposure was achieved with subcutaneous administration of semaglutide in the abdomen, thigh, or upper arm.
In other words, the label does not rank them. Stomach, thigh or arm, the amount of semaglutide that reaches the blood was similar.
What the Instructions for Use add
The single dose pen comes with its own Instructions for Use, which are more precise about where, and where not:
From the labelYou may inject into your upper leg (front of the thighs), lower stomach (keep 2 inches away from your belly button) or upper arm.
From the labelDo not inject into an area where the skin is tender, bruised, red, or hard. Avoid injecting into areas with scars or stretch marks.
And they answer the rotation question that confuses many people:
From the labelYou may inject in the same body area each week, but make sure it is not in the same spot each time.
So rotation does not mean a new body area every week. It means a new spot. Someone who prefers the stomach can stay with the stomach and move around it.
The Medication Guide adds the depth: the shot goes under the skin, not deeper.
From the labelDo not inject WEGOVY into a muscle (intramuscularly) or vein (intravenously).
Not every device says the same thing
The arm is where the instructions differ. The single dose pen lists the upper arm with no condition. The single dose syringe, added in 2026, has its own Instructions for Use, which list the stomach area at least 2 inches from the belly button, the thighs, and:
From the labelback of upper arm (only with help from someone else).
The label also says the training and the Instructions for Use go with the product: if you are prescribed a different Wegovy device, you should receive new training and read the instructions that come with it. When the pen and the syringe say different things, the one in your hand is the one that applies.
How exactly to place the shot is in those same instructions and in the training your healthcare provider gives. This page does not replace either.
What people actually do
On the weekly shot forums, the practical problem is memory. People ask where the last one went, and some admit that counting on memory rarely works by the next week. Others ask how anyone avoids the same spot at all, which is the question the Instructions for Use answer with "same area, different spot". A few people who track their results by site end up tempted to stick to one favourite place, which is exactly what the rotation rule asks you not to do, and the label gives no reason to prefer one site over another.
Oolite keeps the place of each shot with its date, so the next one can go somewhere else.
Questions people ask
Which site works best?
The label does not rank them. It says similar exposure was achieved in the abdomen, thigh or upper arm, and that the injection site can be changed without changing the dose.
Can I use my stomach every week?
Yes. The Instructions for Use say you may inject in the same body area each week, as long as it is not the same spot each time. Stay 2 inches away from the belly button.
Can I inject my own arm?
It depends on the device. The single dose pen instructions list the upper arm without a condition. The single dose syringe instructions say the back of the upper arm only with help from someone else. Follow the instructions that came with yours.
The skin is red or hard where I injected last time. What now?
The Instructions for Use say not to inject into skin that is tender, bruised, red or hard. In the trials, injection site reactions were reported by 1.4 percent of adults on Wegovy against 1 percent on placebo. If it keeps happening, tell your prescriber.
Sources
- Wegovy prescribing information, Novo Nordisk, §2.1, §6.1 and §12.3, revised 06/2026 · Abdomen, thigh or upper arm; site can be changed without dose modification; rotate injection sites with each dose; similar exposure at the three sites; injection site reactions 1.4 vs 1 percent.
- Wegovy Medication Guide, Novo Nordisk, revised 06/2026 · Not into a muscle or vein; change (rotate) the injection site with each injection.
- Wegovy single dose pen Instructions for Use, revised November 2025, and single dose syringe Instructions for Use, approved 05/2026 · Front of the thighs, lower stomach 2 inches from the belly button, or upper arm; not into tender, bruised, red or hard skin, scars or stretch marks; same area allowed, not the same spot; syringe: back of upper arm only with help.
Sources checked Oct 27, 2026. This page is information, not medical advice: read the medical disclaimer, and talk to your prescriber or pharmacist about your own treatment.
Written by
The Oolite team, from the FDA labels
We make Oolite. Every answer starts from the FDA prescribing information, quoted word for word, and is rewritten when a label changes.
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