Understanding your results

Your scan shows each area of your scalp separately, with a written note about what was seen and — where the photo allowed it — figures for that area.

Read the direction, not the decimal

The most useful thing on the page is the shape of your history: which way things are going over a month or more.

Week-to-week wobble is mostly the photograph. Even with careful, consistent capture, one week’s figure can sit either side of the last one without your hair having changed at all. That is why results are shown against your own history rather than as a single score to beat.

Why an area can say “unclear”

An area reads as unclear when the photo could not be read well enough to report anything — usually light, focus, or distance.

This is deliberately not shown as a low score. “Low” would be a result; unclear means there is no result. Reporting one as the other would tell you something about your hair that nobody actually knows.

You will still see your photo for that area. Nothing is hidden — there is just nothing measured to show alongside it.

Why an earlier week’s number can change

This surprises people, so it is worth explaining properly.

The figures you see are not raw readings from a single photo. Each one is an estimate that takes your whole history into account, and it is recalculated every time you add a new scan.

So a new scan does not only add a point — it slightly improves the estimate for the weeks before it, because those weeks now have more evidence around them. A number you remember from last week can therefore read a little differently today.

The alternative would be worse. Locking each week’s figure at whatever the first reading happened to be would mean one badly-lit week stayed in your history forever, pulling your trend around long after it was known to be unrepresentative.

What the figures are, and are not

• They are consistent within your own history — that is what they are built for.
• They are not comparable with another person’s. The scale is not anchored to an outside measurement, so your figure and someone else’s are not on the same ruler.
• They are not a diagnosis. A scan is an estimate from photographs. Anything that needs a diagnosis needs a clinician.

The written notes are in English

Each area gets one sentence describing what the photograph shows, and your scan gets one more covering the whole scalp. Those sentences are written in English, even if you are reading Densy in another language.

If you are, there is a small translate button beside the reading. Press it once and that scan’s notes appear in your language — and stay that way. You do not need to press it again on that scan, on any device, and the button then offers the original English back whenever you want to compare.

The figures, labels and area names around the notes are already in your language. It is only the written sentences that need the button.

Your hair-loss stage

Some scans also show a stage — a standard clinical description of the overall pattern, on the scale appropriate to your recorded sex.

If a week shows no stage, it means the photos that week were not clear enough to place one. It does not mean your stage improved or reset. Stages move slowly; an absent week is a gap in the record, not a change in you.

Tracking change over time covers where the stage appears, and what the two scales are.

What next

• Tracking change over time — comparing two scans, and what an unclear capture does to the numbers
• Your scan history — every scan you have taken
• Hair Coach — ask about one specific scan