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Injection site rotation planner

Select the areas you use, choose how many sub-sites each is divided into, and the planner generates a fixed rotation order. The point is determinism: a written sequence removes the memory requirement, which is the actual reason rotation fails in practice.

Areas you use

Select only areas that your product's own instructions permit.

each

Divide each area into this many spots. Four is a common, workable division.

entries

    Consecutive entries are placed in different areas wherever possible. Skip and note any site that is bruised, tender or thickened rather than following the order regardless.

    How the order is generated

    Each selected area is divided into the number of sub-sites you specify, and the planner interleaves them so consecutive entries are in different areas wherever possible. The result is a fixed-length cycle: follow it in order and every sub-site is used once before any repeats.

    The specific pattern matters far less than having one that is written down. See injection site rotation for why this is a recording problem rather than a discipline problem.

    Using it

    1. Select only areas you actually use, and that your product's instructions permit.
    2. Choose sub-site granularity — four per area is a common, workable division.
    3. Follow the order, and record which site each entry used.
    4. Skip and note any site that is bruised, tender or thickened, rather than injecting on schedule regardless.

    Frequently asked questions

    How many injection sites should I rotate between?

    Enough that no single spot is reused frequently. Dividing each area you use into several sub-sites and cycling through them systematically is a common approach; the exact number matters less than following a written order rather than improvising.

    Why not just remember where I injected last time?

    Because within a couple of weeks nobody can reliably recall which quadrant they used. Rotation fails on recall, not intention, which is why a written order and a recorded site outperform good intentions.

    Should I rotate between areas or within one area?

    Both, on different timescales — moving a short distance within an area between consecutive injections, and moving between areas on a longer cycle. Where a product's own instructions specify an approach, follow those.

    Related pages

    Injection site rotationThe full guide.PepCycle featuresThe body map in the app.SaxendaDaily injections, faster site turnover.All toolsThe full calculator index.

    Stop recalculating this every time

    PepCycle stores each vial once — mass, diluent volume, concentration — and converts automatically for every entry after that, in both directions, including entries you backdate.

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