Cropping and rotating clinical photos: what is allowed

Cropping and rotating are the most common edits to clinical photos, because they seem harmless. They remove a bit of background, straighten a slightly tilted photo, center the face nicely. But any edit to a clinical photo changes the document, and the line between tidying up and tampering is thinner than it looks.

The useful question is not "can I crop?" but "does the crop or rotation change any information that influences the assessment, the plan or the comparison?"

What can and cannot be done?

The table sums up the logic. The criterion is always the same: the edit can be reproduced by anyone, on every photo, and does not favor a result.

Mirroring deserves special mention. Many selfie apps mirror the image by default. In a plan where the side matters, a mirrored photo can lead to injecting the wrong side. Check the front camera setting in front or rear camera for clinical photos.

When does cropping become a problem?

Cropping becomes a problem in three situations. The first is when it changes the information: cutting off the ear removes an alignment reference, cutting off the neck prevents assessing the contour, cutting off the forehead removes the upper third. The second is when it is inconsistent: one crop for the before and another for the after changes the face's apparent proportion in the frame. The third is when it is selective: removing a mark, a lesion or a bruise from the image to present a "clean" photo.

Any of these situations compromises the integrity of the record and, if questioned, the professional's defense. General guidance on editing is in to edit or not to edit a clinical photo.

How do you rotate without altering the information?

There are two kinds of rotation. The first corrects the file's orientation: the phone sometimes saves the photo sideways, and rotating 90 degrees restores the correct orientation. That is neutral and necessary. The second corrects the tilt of the photo, when the patient's head is tilted or the device was tilted. That is where the problem lies.

If the device was tilted, a small adjustment can fix the horizon and is acceptable, with a note of what was done. If the patient's head was tilted, the adjustment alters the information, because the tilt is part of the patient's state at that moment. The right thing is to retake the photo with the patient level, rather than rotating the image. See photo with a tilted face and symmetry.

How do you document what was done?

If an edit is necessary, document it. One line in the patient record or in the file name is enough: "standard crop A applied", "90 degree rotation for orientation". This lets another professional understand and reproduce it. File naming is covered in naming clinical photo files.

What tools should you use?

Any basic editor crops and rotates. What matters is that it saves the copy without over-recompressing the image and without applying automatic filters. Avoid apps that "enhance" the image on saving, that fix skin or that alter colors. If you use an online app, remember that the patient's photo leaves your control, as discussed in cloud storage for patient photos and metadata and location in patient photos.

Prefer tools that run on the device and let you save in a lossless format or at high quality. The discussion of formats is in clinical photo resolution and format.

Cropping, privacy and publication

There is one case where cropping has a different purpose: protecting identity. Cropping out the face to publish an area, for example, does not make the photo anonymous if there is a tattoo, an earring, a scar or other identifiable elements, and privacy remains governed by Brazil's LGPD (data protection law) and your professional board's rules. Any publication requires its own consent, the subject of separate consent for image publication and what you may publish.

Cropping the face out of a clinical photo to post it does not replace consent, and a cropped area can still identify the person.

And in Harmy?

In Harmy, the front photo enters the app through the camera or the gallery, and the device detects the face to create the marking points. For the app, use the whole photo, without aggressive cropping, so the face stays whole and the framing matches the record. The projection keeps the rest of the image and changes only the marked areas. The app's sharing image is a new composition with before and after, the clinic header and an illustrative simulation notice.

The step by step is in standardized front photo. The projection is not a promise of results and must be identified as a simulation in any use.

Summary for your routine

Keep the original, work on a copy, use a standardized crop and rotate only for orientation, and never crop to hide. If the photo needs a bigger correction, retake it. Document any edit and always confirm the image is not mirrored.