How do I track how my baby's head shape changes month to month?

By scanning on a similar schedule each time, keeping the photo the same way each time, and reading the scores as a trend across several scans rather than any single one on its own. One scan tells you where things stand today; only a consistent run of them, spaced out the same way, tells you whether anything is actually changing.

How often should I scan?

About once a month is a reasonable starting point — the exact interval matters less than keeping it consistent. Scan too often and you're mostly looking at ordinary day-to-day variation; leave it too long between scans and it gets harder to tell a real trend from a single noisy reading.

Why do the photo conditions need to stay the same?

Because a score is built to reflect the head, not the photo — but only if the photo itself stays consistent. Change the angle, the distance, or the lighting between scans, and part of what moves between two scores is the photo setup, not the head. See how to photograph for the specifics worth keeping the same every time.

Should I compare scores or single readings?

Compare the trend across several scans, not any two readings in isolation. A few points of movement between one scan and the next isn't, on its own, meaningful — look at the shape of the line across four or five scans instead of the gap between any two points on it.

Is month-to-month movement normal?

Yes. Two photos of the same baby, even taken carefully, are never identical — posture shifts a little, the angle shifts a little from one scan to the next. On top of that, the measurement itself isn't perfectly exact. See how accurate HeadShape AI is for the actual numbers. Put those two sources of movement together, and a few points of change from one scan to the next isn't, on its own, evidence that anything about the head has changed. What's worth paying attention to is a trend that holds up across several scans in a row, not a single jump between two.

Where do my past scans go?

Each scan you run stays reachable from Recent scans on this device, in your browser's own local storage, so you can open an earlier report next to your latest one. That's tied to the device and browser you scanned from, though, so for a record you can count on beyond that, the simplest approach is still the plainest one: note the three scores somewhere you'll actually keep — a notes app, a screenshot — each time you scan.

Not sure what the numbers themselves mean yet? See what the Proportion, Symmetry and Harmony scores mean before your first scan.

For informational and entertainment purposes only. Consult a professional if you have health concerns.