Objective vs Patient-Rated Results in the 2026 Subcision Trial: Questions People With Rolling Acne Scars Can Ask Before a Procedure

In the October 2026 split-face trial, both subcision alone and subcision plus suction improved facial atrophic scars. Physician grades favored the suction side strongly, and patients also rated the suction side higher even though scar counts fell on both sides.

Subcision uses a needle under the skin to cut bands that tether depressed scars downward. The U.S. National Library of Medicine/PubMed record reports higher physician scores with suction (p=.002) and higher patient scores with suction (p=.026).

Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.

What happened on each side of the face?
What did doctors measure and what did patients notice?
Will the smoother look last?
Is subcision meant for your scars?
What should you ask about downtime and sessions?

What happened on each side of the face?

Clinicians performed one subcision on each side of the face. The suction side then received 10 suction sessions.

Dermatologic Surgery via Ovid describes this October 2026 design as a randomized split-face comparison. Split-face testing lets you compare two approaches in the same person. Skin type, healing, and scar pattern stay constant across sides.

What did doctors measure and what did patients notice?

Physician raters used the Acne Scar Improvement Grading Scale. Scores rose significantly higher on the suction side than with subcision alone (p=.002). The PubMed record for the 2026 trial lists that physician-rated gap as a key result.

Patients also rated improvement higher on the suction side (p=.026). Scar counts improved with both treatments, so counting alone missed the difference patients saw. Trial authors linked the gap to perceptible fullness or texture that counting does not capture.

Will the smoother look last?

A separate rater-blinded suction trial found no lasting objective gap with versus without suction. It found only a temporary patient-detected incremental benefit. The ResearchSquare preprint authors urge attention to follow-up timing, described in the preprint from Archives of Dermatological Research authors.

Ask when photos and ratings were taken after the last suction session. Springer Medicine describes a 2024 split-face, evaluator-blinded trial in rolling scars. It found greater improvement after multiple subcisions than in untreated skin, and half the patients preferred the treated side.

Is subcision meant for your scars?

Subcision targets tethered rolling scars and some depressed boxcar scars. It does not target narrow deep ice-pick scars or raised keloid and hypertrophic scars.

The American Board of Facial Cosmetic Surgery draws that indication boundary in its acne scar types and treatments guide. Bring a mirror check to the visit and ask the clinician to map each scar type. Ask which of your marks are rolling, which are boxcar, and which need a different method.

What should you ask about downtime and sessions?

Common harms include bruising, swelling, redness and edema, plus pigment change and infection risk. Subcision often needs multiple sessions.

The NIH/PMC comprehensive review details these tradeoffs in its review of subcision instruments and combinations. Use these prompts at consultation:.

What scar types do I have and will subcision release them?
How many sessions do you advise and what spacing will you use?
What downtime, swelling, and bruising should I plan for?
What is my pigment-change and infection risk and how do you lower it?
When will you measure result to catch lasting change versus short-term swelling?