Subcision is a minor in-office procedure for depressed, rolling acne scars. It releases tight fibrous bands under the skin so the surface can lift and new collagen can form. Revelus Dermatology explains that a sterile needle or cannula cuts the bands tethering the scar down, which triggers wound healing (Revelus Dermatology overview). Families often consider it when rolling scars create shadows and uneven texture despite good daily skincare.
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.
Table of Contents
- How subcision releases tethered scars
- Who makes a good candidate?
- What happens during and after the visit?
- What results should patients expect?
- Risks and when to call the clinic
How subcision releases tethered scars
Rolling scars look wavy because fibrous bands pull patches of skin downward. Subcision targets those anchors directly rather than sanding or peeling the top layer. The clinician sweeps a needle back and forth beneath each scar to cut the tether.
Dermatologists usually perform the treatment in the office under local anesthesia and can treat several scars in one visit, according to the National Library of Medicine (2023 PMC review). After release, the pocket fills with blood and healing tissue. That healing response supports collagen formation and gradual lifting.
Who makes a good candidate?
The best candidates have tethered, rolling or depressed scars and good skin elasticity. Healthline notes that raised scars, keloids, active acne, and mainly deep ice-pick scars are poor matches (Healthline guide).
A dermatologist can test whether a scar lifts when nearby skin is stretched. Families can use this quick check before booking a visit:.
- scars are wide, shallow, and rolling rather than narrow pits
- breakouts are currently calm and controlled
- there is no history of keloids or raised scarring
- skin still springs back when gently pulled
What happens during and after the visit?
The clinician numbs the area, inserts the needle, and sweeps beneath each marked scar. Most people feel pressure more than sharp pain because of the local anesthesia. The visit is brief when only a small group of scars needs treatment.
Expect bruising, swelling, tenderness, and soreness for about one to two weeks. Healthline reports that clinicians may prescribe antibiotics or anti-inflammatory medicine and advise compression and aftercare (Healthline guide). Plan school photos, sports, and travel around that recovery window.
What results should patients expect?
Improvement builds over weeks to months as collagen remodels. Many patients need more than one session, especially when scarring is widespread. One follow-up series found at least 50 percent improvement with lasting benefit for rolling scars, cited in a National Library of Medicine pilot review (40-patient outcomes).
Alone, subcision usually gives mild-to-moderate improvement with a high chance of early re-tethering. Dermatologists therefore often pair it with filler, microneedling, laser, or TCA to restore volume and smooth texture, according to the National Library of Medicine (2023 PMC review). Ask what combination the doctor recommends for both depth and surface texture.
Risks and when to call the clinic
Less-common problems include infection, temporary dark marks after inflammation, firm nodules, nerve or blood-vessel injury, new scars, and scars that tether again. Darkening is more likely in deeper skin tones, so discuss prevention and follow-up care.
Retreatment can help when tissue sticks down again. Call promptly for spreading redness, warmth, fever, severe pain, expanding swelling, bleeding that will not stop, or vision or facial-movement changes. Bring a list of medicines, bleeding problems, prior keloids, and recent acne treatments to the consultation.