Subcision is a minor surgical procedure used for treating acne scars.
Subcision is performed under local anaesthetic using a special medical instrument (called a cannular) that is inserted through a puncture in the skin surface. The aim is to break the fibrotic strands that are tethering the scar to the underlying tissue.
The release of the fibrotic strands and new collagen deposition, caused by wound healing, leads to cosmetic improvement of the scar.
Subcision may not be suitable in the following circumstances:
- Patients with a history of hypertrophic or keloid scars
- Current or recent (within 12 months) systemic oral retinoid (e.g. Acitretin, Isotretinoin)
- Bleeding or blood clotting disorders
- Active skin infection