Short answer:
Subcision is a minor procedure in which a doctor slides a special needle or blunt cannula under a rolling acne scar to cut the fibrous bands pulling it down. Once released, the skin can lift and new collagen forms underneath. In Gangnam it typically costs ₩100,000–₩500,000 per session, usually needs 1–3 sessions, and bruising lasts about 5–7 days. The improvement is permanent.
Why rolling scars need subcision
Rolling scars have soft, sloping edges and create a wavy surface. They form when scar tissue tethers the skin to deeper layers. Lasers and fillers alone often cannot lift them well because the tethering bands keep pulling the skin down. Subcision addresses that cause directly.
How the procedure works
- Marking:
scars are mapped under angled light.
- Local anaesthesia:
numbing injections make the procedure comfortable.
- Release:
a fine needle or cannula is moved under each scar in a fanning motion to cut the bands.
- Support:
many Gangnam clinics then inject a booster such as Rejuran S
or a small amount of filler to keep the space from re-tethering.
Treatment usually takes 20–40 minutes.
Recovery timeline
- Days 1–3:
swelling and bruising; the area may feel tender.
- Days 4–7:
bruises turn yellow and fade; most people return to work with makeup.
- Weeks 2–8:
scars gradually look softer as collagen forms.
Small firm bumps under the skin can occur and usually settle over several weeks.
Results and number of sessions
One session often gives a visible improvement, and 1–3 sessions spaced 4–8 weeks apart are typical. Because the tethering bands are cut, the release itself is permanent, though some bands can reform, which is why repeat sessions and supportive boosters are used.
Common combinations
- Subcision plus Rejuran S or filler:
supports the released area.
- Subcision plus TCA CROSS:
covers both rolling and icepick scars.
- Subcision plus fractional CO2 laser:
improves surface texture after the scars are lifted.
Subcision price in Gangnam (2026)
- Typical range:
₩100,000–₩500,000 per session, about $70–$360.
- What changes the price:
number of areas, needle versus cannula, and whether a booster or filler is included.
See our subcision treatment guide
and acne scar concern page.
Risks and who should be careful
Possible effects include bruising, swelling, temporary lumps, and rarely infection or pigment change. Tell your doctor about blood thinners, bleeding disorders, keloid tendency, active acne or recent isotretinoin use.
Aftercare
- Use cold compresses for the first day to limit swelling.
- Avoid alcohol, saunas and hard exercise for 3–5 days.
- Do not massage the area unless your doctor tells you to.
- Use daily sunscreen while bruises heal.
Frequently asked questions
Does subcision work on icepick scars?
Not well. Icepick scars usually need TCA CROSS or punch techniques.
How long is the downtime?
Bruising typically lasts 5–7 days.
Is subcision permanent?
The release is permanent, though some scars need more than one session.
Can I fly after subcision?
Usually yes after a day or two, but bruising will still be visible.
How much does it cost?
Typically ₩100,000–₩500,000 per session in Gangnam in 2026.
This article is general information, not medical advice. Suitability, settings and results vary by person. Always consult a licensed doctor and get an itemised written quote before treatment. Prices are typical 2026 Gangnam planning ranges at about 1 USD = ₩1,400 and change often. Updated October 2026.
