Why does injection site rotation matter?

Injecting into the same spot repeatedly can cause lipohypertrophy (fatty lumps) and scar tissue, which change how the medication absorbs and can make dosing less predictable. Rotating sites gives each area time to recover and keeps absorption more consistent.

How far apart should injection sites be?

A common guideline is to keep each new injection at least a couple of centimetres (roughly a finger's width) from the previous one, and to leave a given zone to rest for at least a week before returning to it. This tracker warns you when you select a zone used within the last seven days.

Which body areas are used for subcutaneous injections?

The most common subcutaneous zones are the abdomen (avoiding the area right around the navel), the front and outer thighs, the back of the upper arms, and the flanks or love handles. This tracker maps all of these so you can spread injections across them.

How long should I rest a site before using it again?

Many protocols aim to leave at least one to two weeks between injections in the same small area. The tracker treats a site as fully rested after two weeks and flags anything used within the last week as too soon.

Is my rotation history saved?

Yes. When you are signed in, your log is saved to your Keel account and syncs to any device. When you are signed out, the log is kept only on the current device until you create a free account to sync it.

Injection Site Rotation Tracker

Log where you last injected on a to-scale body map, see the best next site to rotate to, and get a warning before you reuse a spot too soon. Rotating sites protects your tissue and keeps absorption consistent.

Loading the injection site rotation tracker

Tap a zone on the body map to log an injection, read the recommended next site, and review your rotation history.

Why injection site rotation matters

Every subcutaneous injection leaves a tiny amount of trauma in the tissue. Inject into the same spot again and again and that tissue can thicken into fatty lumps (lipohypertrophy) or scar tissue. Those changes are not just cosmetic — they alter how quickly the medication is absorbed, which makes your dose less predictable from one shot to the next. Rotating across different zones gives each area time to recover so absorption stays consistent and injections stay comfortable.

How to use this tracker

1Log where you injected. Tap the zone on the body map where you gave your last injection and confirm the date. Each entry is stored in your rotation history.
2Read the recommended next site. The tracker highlights the zone that has rested the longest so you always move to fresh tissue on your next injection.
3Heed the repeat-too-soon warning. If you pick a zone you used within the last week, the tracker warns you so you can avoid re-injecting the same spot before it recovers.
4Rotate around every zone. Work systematically across abdomen, thighs, upper arms, and flanks before returning to any single site.

Common questions

Why does injection site rotation matter?: Injecting into the same spot repeatedly can cause lipohypertrophy (fatty lumps) and scar tissue, which change how the medication absorbs and can make dosing less predictable. Rotating sites gives each area time to recover and keeps absorption more consistent.
How far apart should injection sites be?: A common guideline is to keep each new injection at least a couple of centimetres (roughly a finger's width) from the previous one, and to leave a given zone to rest for at least a week before returning to it. This tracker warns you when you select a zone used within the last seven days.
Which body areas are used for subcutaneous injections?: The most common subcutaneous zones are the abdomen (avoiding the area right around the navel), the front and outer thighs, the back of the upper arms, and the flanks or love handles. This tracker maps all of these so you can spread injections across them.
How long should I rest a site before using it again?: Many protocols aim to leave at least one to two weeks between injections in the same small area. The tracker treats a site as fully rested after two weeks and flags anything used within the last week as too soon.
Is my rotation history saved?: Yes. When you are signed in, your log is saved to your Keel account and syncs to any device. When you are signed out, the log is kept only on the current device until you create a free account to sync it.

Working out the dose itself? Use the Dose & Reconstitution Calculator, or plan a gradual ramp with the Titration Schedule Builder.

For educational and research purposes only. Not medical advice. Always consult a licensed healthcare professional.