Subcision is a minor in-clinic procedure that treats depressed acne scars — particularly rolling scars — by releasing the fibrous bands that tether the scar down to the tissue beneath. Once those bands are cut, the skin is free to lift back to its normal level, and the controlled injury stimulates fresh collagen to fill the space from below.

It is one of the few acne scar treatments that addresses the cause of a depressed scar rather than only resurfacing the top of the skin. For that reason subcision is often the turning point for rolling and tethered scars that have not improved with microneedling or peels alone.

At her Dubai clinic, Dr Azra Vaziri performs subcision as part of a personalised scar plan, usually combined with RF microneedling or filler so that the released skin is supported while new collagen forms. Subcision sits within the wider acne scar treatment menu.

Subcision — short for subcutaneous incisionless surgery — is a technique in which a fine needle or blunt cannula is passed just under a depressed scar, moving in a gentle fanning motion to cut the fibrous strands anchoring the scar to the deeper layers of skin. These tethering bands are what pull a rolling scar downward and create the shadowed, wave-like dip you see on the surface.

Two things happen once the bands are released. First, the skin is mechanically freed and rises toward the level of the surrounding tissue. Second, the micro-trauma of the procedure triggers the body’s wound-healing response, laying down new collagen in the released pocket that supports the lift over the following weeks. It is this dual action — immediate release plus gradual collagen fill — that makes subcision so effective for scars that resurfacing treatments cannot reach.

Because it works beneath the surface rather than on top of it, subcision is safe across all Fitzpatrick skin types, including the deeper skin tones common in the UAE, with a low risk of the pigmentation changes that can follow more aggressive laser resurfacing.

Well suited to subcision

• Rolling scars — the classic indication, caused by tethering bands
• Broad, shallow depressions that move with the skin
• Tethered boxcar scars with a bound-down base
• Depressed scars that have plateaued with microneedling alone

Less suitable — better options exist

• Ice pick scars — too narrow and deep; TCA CROSS is preferred
• Raised or keloid scars — subcision is for depressed scars only
• Flat pigmentation or redness — treated with peels, not subcision
• Active, inflamed acne — must be controlled first

1. Assessment & mapping — Dr Azra Vaziri examines your scars in raking light, identifies which are tethered, and marks each one. Only depressed, bound-down scars are selected for subcision.
2. Numbing — the area is cleaned and local anaesthetic is injected so the procedure itself is comfortable. You stay awake throughout.
3. Band release — a fine needle or blunt-tip cannula is introduced through a single entry point and moved in a fanning sweep beneath each scar, freeing the fibrous tethers. You may feel pressure but not sharp pain.
4. Support (optional) — where useful, RF microneedling, a small amount of biostimulator, or filler is added so the newly released skin is held up while collagen forms.
5. Aftercare — pressure is applied to limit bruising, and you leave with clear aftercare guidance. The whole visit typically takes 30 to 45 minutes.

Recovery & downtime

Expect bruising and swelling at the treated sites — this is normal and part of how subcision works. Bruising usually settles over 5 to 14 days and is easily covered with makeup after the first day or two.

Most people return to work the same or next day. Strenuous exercise and alcohol are best avoided for 48 hours to limit bruising, and sun protection is essential throughout — important in the UAE’s strong daylight.

Results & timeline

Some lift is visible immediately once the bands are released, but the real improvement builds over 6 to 12 weeks as new collagen fills the space. Most rolling-scar patients need 2 to 3 sessions spaced 4 to 6 weeks apart for a full result.

Results are long-lasting because the tethering bands are physically released. Combining subcision with RF microneedling typically produces a smoother, more complete result than either treatment alone.

Subcision releases the scar; the treatments below help fill and refine it. Dr Azra Vaziri commonly pairs subcision with one or more of these, staged over a course, so that deep structure and surface texture are treated together. See how everything fits in the full acne scar treatment guide.

Important to know

• Bruising is expected, not a complication — it reflects the release that makes subcision work. Plan around any events for a week or two afterwards.
• Active acne must be under control first — treating tethered scars over inflamed skin risks new scarring.
• Occasionally a small firm nodule can form as it heals; it is usually self-limiting and manageable at review.
• Realistic expectation: significant improvement over a course, not total erasure. Subcision is powerful but works best in combination.