Common Mistakes in Before and After Photos
Quick facts
- Most common cause
- Different photo conditions between before and after: light, angle, distance and expression.
- Effect
- Result overestimated or underestimated, unrelated to the procedure.
- Prevention
- Fixed protocol, floor marks, tripod, checklist and follow-up photos at the agreed interval.
- Rule
- If something changed between the photos, record it and tell the patient.
The before and after are the two most important photos in orofacial harmonization care, and the easiest to spoil without noticing. A mistake in light or angle turns a good result into a "subtle result" or, conversely, makes a modest result look excellent. In both cases, the patient and the professional make decisions based on an image that lies.
This page gathers the mistakes that most mislead the reading, grouped by cause, with a way to avoid each one.
Which mistakes alter how the result is read?
| Group | Mistake | Effect on reading |
|---|---|---|
| Light | Different light (window vs. ceiling, side, intensity) | Folds and under-eye hollows look more or less marked |
| Camera | Different height, distance or lens | Chin, nose and proportions change |
| Patient | Head tilted, turned or chin raised | Contour, symmetry and cheekbone change |
| Expression | Smile, pressed lips, furrowed forehead | Creases, volumes and mouth corners change |
| Timing | After photo with recent swelling | Volume overestimated, transient asymmetry |
| Preparation | Different makeup, hair, accessories | Under-eye area and contour change |
| Editing | Filter, retouching, adjustment on one photo only | Forged result |
| Format | Different framing and crops | Unfair comparison |
1. Different light
The most frequent mistake. Light coming from above deepens the nasolabial fold and the under-eye area; flat frontal light erases those same reliefs. If the before was shot with ceiling light and the after with window light, the difference that shows is a difference in light.
How to avoid it: diffuse, symmetrical light that is always the same (see lighting for clinical facial photos), no window and no flash.
2. Camera at a different height, distance or lens
A higher camera shortens the chin; a lower one lengthens it. Closer enlarges the nose. A different lens changes all of that. Any variation enters the comparison as if it were an effect of the procedure.
How to avoid it: tripod, floor marks and notes of lens and distance (camera height, phone distance).
3. Head tilted or turned
A small rotation changes the projection of the nose and cheekbone on one side. A tilt changes the position of the eyes and chin. A chin raised "to look good" hides the double chin and shortens the chin.
How to avoid it: horizontal Frankfurt plane, a fixed point on the horizon and symmetrical ears in the frame (Frankfurt plane, looking at the horizon).
4. Different expression
A slight smile in the after changes the cheek, the fold and the lip contour. Pressed lips thin the vermilion. A furrowed forehead changes the frontal lines.
How to avoid it: neutral expression and a standard verbal prompt (neutral expression in clinical photos).
5. After taken too early
Swelling and, in some cases, bruising mask the result. Photographing a filler the same day shows transient volume, not the result. The reverse also happens: photographing too late, when the effect has already faded, underestimates what was done.
How to avoid it: define, at clinical discretion, the follow-up interval for the final photo and record the elapsed time (when to take the follow-up photo).
6. Different preparation
Makeup, lipstick, loose hair, earrings and glasses change how the face reads. See makeup in clinical photos, hair pulled back and accessories.
7. Editing on one photo only
Correcting brightness only on the after, smoothing skin, lightening the under-eye area: all of this manufactures a result. See the limit in to edit or not to edit a clinical photo.
8. Different frame and proportion
Cropping one photo tighter than the other makes the face look larger. Align by the eyes and use the same frame (aligning photos by the eyes).
Comparison audit checklist
What should you tell the patient when there is a difference?
Honesty is the way. If the light came out different or the photo was taken with swelling, say so. This builds trust, and the patient understands that the comparison was made with care.
If the after photo looks worse than the before, it is worth reading after photo worse than the before, which covers how to investigate and talk about it.
The timeline of a well-made comparison
And Harmy in this process?
In Harmy, the "after" projection is an illustrative simulation generated from the patient's front-facing photo. When the actual result is added to the history, the app stores the photo aligned by the eyes and lets you compare Projection, Actual result and Projection vs Actual. These capture mistakes apply there too: a result photo with different light and angle makes the comparison with the projection unreliable. See history and actual result and standardized clinical photography.
Summary for your routine
Almost every "result error" in a photo is a method error. A short protocol, fixed marks, a checklist and follow-up photos at the agreed interval solve most of it. The goal is that the difference between the photos be, as much as possible, the difference in the face.
Frequently asked questions
What are the most common mistakes in before and after photos?
Different light, different distance and lens, camera at a different height, different expression or head position, a photo with recent swelling and editing on only one of the images.
Why does the after look worse than the before even with a well-done procedure?
Often because of a difference in light, angle or expression, or a photo taken with swelling. Before concluding, compare the capture conditions of the two photos.
How do I keep the comparison from misleading the patient?
By standardizing capture, aligning the photos, explaining any differences that exist and showing the images in the same format. No promise of results.
Can a before and after photo be used as proof of results?
Only if the conditions are comparable and the image is unedited. Even so, the result is individual and should not be promised to other patients.
Harmy images are illustrative simulations generated by AI from the patient's photo to support the conversation between practitioner and patient. They are not a promise of results. Indication, technique, product and volume are solely the decision of the licensed practitioner. This content is for information only and does not replace a clinical assessment.