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DrPlus Skin Education · Acne Scars

Subcision for Rolling Acne Scars: What to Know

Rolling scars are tethered from below. Until that tethering is released, surface treatments often do less than expected.

6 min readUpdated May 2026

What are rolling acne scars?

Rolling scars give the skin a wave-like, undulating texture. They look like soft hills and valleys rather than sharp pits — the edges are soft, and the depression can be wider than it is deep.

What makes rolling scars different from other atrophic scars is what is happening underneath the surface, not on it.

Why some scars appear tethered

During healing from inflammatory acne, fibrous bands can form between the underside of the skin and the deeper tissue. These bands physically pull the skin surface down — which is what creates the rolling appearance.

This is why surface-only treatments often disappoint with rolling scars: the surface keeps being pulled back down by the band beneath it.

— Mechanism

Tethered surface, before and after release

Tethered

Fibrous bands beneath the skin pull the surface downward, creating the rolling depression.

After release

Once the bands are released, the skin can sit closer to its natural level. Collagen support is often added in the following weeks.

How subcision works

Subcision is a small in-clinic procedure performed under local anaesthesia. A fine instrument is introduced under the skin and used to break the fibrous bands tethering the scar down.

Once the bands are released, the skin can sit closer to its natural level. The body's healing response can also stimulate some collagen activity in the area as it repairs.

Subcision targets the structural problem rather than the surface. That is why it is often the first treatment considered for rolling scars before adding any resurfacing.

When subcision may be considered

Subcision is typically considered when rolling scars are the dominant pattern, especially when prior surface treatments have plateaued. It may also be considered alongside other scar types when there is a clear tethered component.

It is generally not used during active acne flares, and your doctor will assess whether your skin is in a settled enough state for the procedure to be appropriate.

Why combination treatment may be recommended

Releasing the tether is often only step one. Many plans add a collagen-stimulating treatment such as RF microneedling or a chemical peel a few weeks afterwards, so the lifted skin has structural support holding it up.

CO₂ laser may be considered later in the sequence for any remaining boxcar texture or surface irregularity. The key is sequencing — letting each treatment do its job before the next.

— Pathway

A common rolling-scar treatment pathway

  1. 01

    Consultation

    Confirm scar mix and rule out anything that should be treated first.

  2. 02

    Subcision

    Release fibrous bands so the skin can sit at its natural level.

  3. 03

    Collagen support

    RF microneedling or peels added over the following weeks.

  4. 04

    Refine surface

    Targeted CO₂ laser for remaining boxcar texture if appropriate.

  5. 05

    Maintenance

    Periodic touch-ups planned around how the skin responds.

What to ask during consultation

Useful questions include: which of my scars are likely tethered? What is the expected recovery from the procedure? How will subcision be combined with other treatments? What is realistic for me over a typical course?

A good consultation does not pressure you to proceed on the day. You should leave with a clear plan and the option to take time before booking.

— Frequently asked

Common questions

Subcision is performed under local anaesthesia so the procedure itself is generally well tolerated. Brief soreness or tightness may follow as the area heals.

Mild swelling and bruising are common in the first few days and typically settle within a week. Your doctor will share a recovery plan personalised to your case.

It varies. Some patients see useful improvement after one session; many benefit from a planned sequence spaced several weeks apart, often combined with collagen-stimulating treatments.

Yes — and it often is. Many plans pair subcision with RF microneedling, peels or CO₂ laser at staged intervals so each treatment supports the others.

Subcision aims to release tethering and allow the skin to sit at its natural level — improvement is usually meaningful but rarely complete. Realistic expectation-setting is part of a good consultation.

— Related treatments

Each page goes deeper into mechanism, suitability and recovery — your final plan is confirmed at consultation.

— Continue reading