Quick Answer
What does subcision do? Subcision is a minimally invasive surgical technique that mechanically cuts the fibrous bands beneath acne scars, cellulite, and scar tissue, releasing the skin from the underlying tissue. A Nokor needle or hypodermic needle is inserted subdermally and the bands are severed with cutting movements. The released skin lifts upward, reducing the depressed appearance; additionally, the haematoma that forms in the treated area stimulates new collagen synthesis. The best results are achieved for rolling acne scars, broad-based boxcar scars, and mild-to-moderate cellulite. Combination protocols with PRP or hyaluronic acid filler significantly improve success rates.
What Is Subcision? The Core Mechanism
Subcision is a minimally invasive dermatological surgical technique first described in 1995 by dermatologist David Orentreich for the treatment of depressed acne scars, scar tissue, and cellulite. The underlying principle is straightforward: the fibrous bands responsible for the depressed appearance act like tent poles between the dermal layer and the subcutaneous tissue, anchoring the skin downward and creating an indentation. Subcision mechanically severs these bands, releasing the skin.
During the procedure, a specialised Nokor needle (triangular cross-section with sharp cutting edges) or a standard hypodermic needle is inserted at an angle beneath the anaesthetised skin. Lateral and back-and-forth cutting movements sever the fibrous bands. This mechanical disruption produces improvement through two distinct mechanisms: immediate correction from physical release of the bands, and long-term improvement through new collagen synthesis triggered by the haematoma (blood collection) that forms at the site of injury.
In Which Types of Acne Scars Is Subcision Effective?
Acne scars are classified according to their morphology, and each type responds differently to various treatment approaches. In which types does subcision work best?
| Acne Scar Type | Description | Response to Subcision |
|---|---|---|
| Rolling | Broad, undulating depressions with sloping edges; typically associated with dermal fibrous bands | Excellent — primary indication |
| Boxcar (broad-based) | Wide, round or oval depressions with vertical edges | Good — more effective for shallow variants |
| Ice pick | Narrow, deep, V-shaped puncture-like scars | Poor — punch excision or TCA CROSS preferred |
| Hypertrophic / Keloid | Raised scar tissue with excess collagen | Contraindicated — risk of new scar formation |
Nokor Needle vs. Standard Hypodermic Needle: What Is the Difference?
The choice of instrument used in subcision directly affects the technique's efficacy and complication profile. Two principal tools stand out:
- Nokor needle: A specialised needle with a triangular cross-section and sharp cutting edges. It severs fibrous bands more efficiently and provides more comprehensive tissue dissection. It produces a larger haematoma, potentially generating stronger collagen stimulation, but the ecchymosis (bruising) period is also longer. It is regarded as the gold-standard instrument preferred by experienced practitioners.
- 18–20 G hypodermic needle: A more widely available, less expensive, and more controllable alternative. It provides less aggressive cutting than the Nokor needle, making it adequate for mild-to-moderate scars but potentially insufficient for deep fibrous bands.
At Virtuana Clinic, the physician selects the instrument based on the patient's scar type, depth, and location. Clinically meaningful outcomes can be achieved with both instruments when the correct technique is applied.
The Role of Subcision in Cellulite Treatment
Cellulite is the "orange peel" appearance caused by subcutaneous fat lobules compartmentalised by fibrous septa that stiffen and shorten over time. From a pathophysiological standpoint, the mechanism is analogous to acne scars: fibrous bands pull specific points of the skin downward, creating indentations.
Subcision is also an effective approach in this context. Minimally invasive subcision targeting prominent indentations on the gluteal region and thighs releases the fibrous septa. The FDA-cleared Cellfina device is an advanced subcision system that automates this principle; clinical studies have reported durable improvement lasting 3 years after a single session. At Virtuana Clinic, subcision for cellulite is delivered using optimised protocols combining PRP and radiofrequency.
Subcision + PRP Combination: Synergistic Effect
PRP (Platelet-Rich Plasma) is a biological agent derived from the patient's own blood by centrifugation, containing a high concentration of growth factors. Combining subcision with PRP merges the strengths of both modalities:
- Subcision mechanically severs the fibrous bands and creates a stimulus for new collagen synthesis.
- PRP amplifies this stimulus through growth factors (PDGF, TGF-beta, VEGF, EGF), accelerating fibroblast proliferation, collagen organisation, and angiogenesis.
- PRP injected into the haematoma site transforms the clot into a growth-factor depot and enriches the nascent filler matrix.
A randomised controlled trial published in the Journal of Cosmetic Dermatology in 2021 reported that the subcision + PRP group showed 42% greater improvement in ECCA (European Committee of the Comparison of Acne Scars) scores at 6 months compared to the subcision-only group. At Virtuana Clinic, this combination protocol has been adopted as the standard approach, particularly for widespread rolling and boxcar scars.
Subcision + Hyaluronic Acid Filler Combination
When the space released by subcision is filled with dermal filler, two principal benefits are achieved: immediate volume augmentation and prevention of re-adhesion of the scar tissue by acting as a scaffold within the newly formed cavity. Hyaluronic acid filler injected into the area where the fibrous bands were severed helps permanently close the void.
Low-viscosity, spreading filler products are particularly preferred for this technique. Stiff, high-viscosity filler products may distort the natural appearance in fine scars. The longevity of the procedure varies between 6–18 months depending on the filler type and the patient's metabolism.
Treatment Procedure: Step by Step
At Virtuana Clinic, the subcision procedure follows these steps:
- Assessment and photography: Facial photography under natural lighting, oblique lighting, and polarised light; classification of acne scar types; determination of any requirement for combination treatment
- Patient preparation: Discontinuation of retinoids at least 2 weeks prior to the procedure; treatment of any active acne flares beforehand; adjustment of anticoagulant medications in consultation with the physician
- Anaesthesia: Application of topical anaesthetic cream (EMLA) for 45–60 minutes and/or tumescent anaesthesia with liposomal lidocaine-based local anaesthetic
- Procedure: Nokor or hypodermic needle inserted individually at each scar depression with lateral cutting movements to sever the fibrous bands; PRP or filler injected immediately afterwards if planned
- Post-procedure: Ice application and compression to the treated area; written aftercare instructions provided
Procedure duration varies from 20–60 minutes depending on the extent of the area treated. An average of 3–6 sessions is planned at 4–6 week intervals.
Recovery Process: Day-by-Day Timeline
The post-subcision recovery process is one of the topics patients are most curious about. The typical course can be summarised as follows:
- Days 1–2: Noticeable swelling and redness in the treated area; onset of ecchymosis (bruising). Normal daily activities can be resumed but make-up is not recommended.
- Days 3–7: Bruising reaches its peak and begins to turn yellowish-green. Swelling subsides. Concealing make-up may be used.
- Weeks 2–3: Most of the bruising resolves; a feeling of firmness or a subtle raised area may be felt in the region (this is temporary). Partial improvement in the scars begins to appear.
- Months 1–3: New collagen synthesis is completed; the most pronounced improvement in scarring emerges during this period. The next session can be planned.
Complications and Risk Management
Subcision is a safe procedure in experienced hands; however, potential complications that require attention include:
| Complication | Frequency | Management |
|---|---|---|
| Ecchymosis (bruising) | Very common (>90%) | Ice application, arnica; resolves in 7–14 days |
| Transient hyperpigmentation | Common (more frequent in darker skin tones) | SPF 50+, azelaic acid; resolves in 4–8 weeks |
| Re-fibrosis | Moderate frequency (10–20%) | Additional session; reduce risk by combining with PRP |
| Infection | Rare (<1%) | Aseptic technique; antibiotics if required |
| Irregular surface / new scar | Rare; more likely with inexperienced practitioners | Selection of an experienced physician is critical |
Comparing Subcision with Other Acne Scar Treatments
Subcision alone is very rarely sufficient for acne scar management. Comprehensive scar management typically requires a combination of multiple modalities. Understanding how subcision compares with other methods is therefore important for determining which treatment should be performed first and which should follow:
| Modality | Best Indication | Limitations | Downtime |
|---|---|---|---|
| Subcision | Rolling scars, fibrous-band-tethered depressions | Ineffective for ice-pick scars; does not improve surface skin texture | 7–14 days (bruising) |
| Fractional laser (CO2 / Erbium) | Superficial scars, skin texture irregularity, uneven tone | Insufficient alone for deep rolling scars | 5–10 days |
| TCA CROSS | Ice-pick scars (narrow, deep) | Not suitable for wide, shallow scars | 3–5 days |
| Dermapen (microneedling) | Superficial scars and collagen renewal; whole-face treatment | Insufficient for deep fibrous bands | 2–4 days |
Who Is a Candidate for Subcision? Contraindications
Candidate assessment for subcision is based on the following criteria:
- Suitable candidates: Individuals with rolling or boxcar-type acne scars; those with healthy overlying skin and no active inflammation at the scar site; patients aged 18 and over; those with realistic expectations
- Relative contraindications: Active acne and inflammation (acne must be treated first); anticoagulant medication use; coagulopathy; history of keloid or hypertrophic scarring (requires careful consideration); active herpes simplex virus (HSV) infection
- Absolute contraindications: Active skin infection in the treatment area; isotretinoin use (within the past 6 months); coagulation disorders
Subcision at Virtuana Clinic: Protocol and Expectations
At Virtuana Clinic in Izmit/Kocaeli, subcision treatment is performed by a dermatology specialist within a comprehensive scar management programme. At the initial consultation, facial mapping is carried out, each scar type is assessed individually, and a personalised combination protocol is devised. Our standard approach for rolling scars consists of 3–5 sessions of subcision combined with PRP; in addition, fractional laser or microneedling sessions may be planned to improve surface skin integrity.
Our clinical results demonstrate an average improvement of 50–70% in ECCA scores for rolling scars and a patient satisfaction rate exceeding 85%. Progress is documented with regular photographic records throughout the treatment process. Patients from Izmit and surrounding provinces are welcome to book a consultation for subcision treatment.
This article is for informational purposes only. Please consult a qualified physician for treatment decisions.