What zones this covers
This protocol focuses on: crown, overall. Track zones separately so you do not average away the signal.
Why this matters
- Crown photos are extremely sensitive to height and lighting, so a repeatable protocol is non-negotiable.
- Hair length changes can mimic density changes in the crown area.
What to photograph
- Top-down crown photo at the same height and distance.
- Optional: vertex under the same overhead light to keep shadows consistent.
- Include a reference frame (same background and position).
What to log
- Hair length and haircut dates (length changes can mimic density changes).
- Product residue/oil (can change shine and scalp visibility).
- Adherence if you are on a routine.
How to interpret what you see
- Avoid interpreting crown changes across different hair lengths.
- If the top-down angle is not repeatable, retake before comparing.
Decision points (when to wait vs act)
- If you cannot reproduce the top-down angle, the comparison is not valid.
- Use 4-8 week windows; vertex variance week-to-week is common.
- If worsening persists across multiple windows, reassess with a clinician.
When to get evaluated
- Sudden shedding with scalp symptoms or patchy loss.
- Rapid worsening across multiple consistent windows.
Common mistakes that fake progress
- Taking crown photos from different heights (major distortion).
- Using flash sometimes and not others.
- Judging crown from mirrors instead of consistent captures.
FAQ
Why does my crown look worse right after a haircut?
Shorter hair can increase scalp visibility. Log haircut dates and compare windows with similar hair length.
Do I need special equipment to track crown thinning?
No, but you do need a repeatable top-down angle and consistent lighting. Consistency beats perfection.
