Subcision for Acne Scarring

Subcision for acne scar treatment is a popular procedure at the private NYC dermatology practice of Dr. Michele Green. Acne scars result from unresolved acne, leaving the skin damaged. Acne remains one of the most common skin conditions in the United States, affecting millions of Americans each year. Severe inflammatory breakouts, such as cysts, papules, and pustules, can develop into acne scars if left untreated. These scars are often more challenging to treat than the original acne. Depending on how the skin heals, acne can lead to atrophic acne scars — depressions caused by insufficient collagen production during wound healing — hypertrophic or keloid scars caused by excess collagen, or skin discoloration and post-inflammatory hyperpigmentation. Without treatment, acne scars are typically permanent and can leave patients self-conscious about their complexion. That is why board-certified dermatologist Dr. Michele Green in NYC offers a range of treatment options, including subcision, for all types of acne scarring.

Patients with depressed scars, including rolling and boxcar scars, are excellent candidates for subcision, a minor surgical procedure that releases the tension pulling the skin’s surface downward. Also known as subcutaneous incisionless surgery, subcision uses a small needle, hypodermic needle, Nokor needle, Taylor liberator, or blunt cannula to break the fibrous bands and fibrotic strands tethering the scar tissue to the dermis, creating an immediate lift and stimulating the body’s natural collagen production for smoother skin texture over time. When combined with other in-office treatments such as dermal fillers, microneedling, chemical peels, TCA cross, or laser resurfacing, subcision becomes an even more effective option for treating atrophic scars. Dr. Michele Green tailors each treatment plan to the patient’s unique scarring pattern.

Dr. Michele Green, based in New York City, is an internationally recognized, board-certified dermatologist with over 25 years of experience. She offers discerning men and women the finest skincare and minimally invasive skin-rejuvenation treatments, including subcision for acne scars. Dr. Green’s dedication to her patients and expertise have consistently earned her recognition as one of New York’s top dermatologists by Castle Connolly, New York Magazine, and Super Doctors. She takes a holistic approach to facial and skin rejuvenation, following a ‘less is more’ philosophy that customizes each treatment plan by combining specially formulated skincare products with in-office procedures tailored to each patient’s concerns and aesthetic goals.

What is Subcision Acne Scar Treatment?

Subcision, also called subcutaneous incisionless surgery, is a safe and effective treatment for depressed acne scars, particularly atrophic acne scars that form when the skin fails to produce enough collagen during wound healing, allowing fibrous tissue to pull the skin downward. Rather than cutting the surface, Dr. Green inserts a Nokor needle, Taylor liberator, or blunt cannula into the dermis beneath the scar to release the fibrotic strands that connect the skin’s surface to the underlying scar tissue, producing an immediate lift and encouraging new collagen production. Depending on the size of the treatment area, subcision may be performed as localized or full-field subcision, and it can also soften wrinkles and cellulite. Most patients need multiple sessions, often paired with dermal fillers, for the smoothest, most even skin texture.

How is acne scar subcision performed?

The first step in any acne scar treatment is a consultation with Dr. Michele Green, a board-certified dermatologist who can minimize the risks of surgery and the side effects of subcision. If subcision is right for you, Dr. Green will have you apply a local anaesthetic cream to the treatment area about an hour beforehand to reduce discomfort. After marking the scars with a surgical pen, she inserts an 18- or 20-gauge cannula or needle at an acute angle, bevel facing up, and moves it in a fanning motion through the dermis to release the fibrous bands and scar tissue. Patients notice an immediate lift, and continued collagen production leads to smoother skin over the following weeks. Dr. Green may recommend combining subcision with dermal fillers or laser resurfacing to further improve volume and texture, and most patients experience minimal downtime, with full healing typically within a week.

Many patients wonder how many sessions of subsicion are needed for acne scars. Most patients need a series of three to six subcision sessions, spaced four to six weeks apart, to achieve the best long-term improvement in their acne scars, though some notice a difference after just one treatment.

Dermal fillers combined with subcision to treat acne scars

Subcision breaks apart the fibrous bands tethering depressed scars to the skin’s surface, but it’s often combined with dermal fillers to restore lost volume and further stimulate collagen production. Dr. Green frequently injects fillers such as Sculptra and Restylane directly into isolated acne scars or into the surrounding cheeks and temples for a smoother, more even appearance. Sculptra, made of poly-L-lactic acid, gradually rebuilds collagen over a series of three sessions, with visible results in four to six weeks that last up to two years, while hyaluronic acid fillers like Restylane provide immediate volume that typically lasts six to eighteen months. During a consultation at her private NYC dermatology practice, Dr. Green will assess your skin and design a personalized treatment plan.

Are subcision results permanent?

Yes, subcision provides permanent results because the fibrous bands that pull the skin into a depressed scar are permanently released once broken. This allows the skin to lift and settle into a smoother, more even appearance that does not reverse over time. That said, subcision cannot prevent new acne scars from forming if active breakouts continue, so patients with ongoing acne should consult a board-certified dermatologist like Dr. Michele Green in NYC to treat the underlying acne and protect their results.

Types of Acne Scars

Acne scarring generally falls into two categories: atrophic scars, which create indentations due to insufficient collagen, and hypertrophic scars, which appear raised due to excess collagen production. Atrophic scars include three subtypes. Ice-pick scars are small, deep, and narrow, forming when a breakout occurs deep within the skin. These deep acne scars are particularly difficult to treat. Boxcar scars appear as shallow, wide, oval or round depressions where fibrous bands of collagen have been damaged. Rolling acne scars create a wavy texture on the skin’s surface, caused by fibrous bands beneath the skin pulling unevenly on the epidermis. Subcision works best on boxcar and rolling scars, since both result from fibrous bands pulling the skin’s surface into a depression. It is not typically recommended for ice-pick, hypertrophic, or keloid scars.

Other Cosmetic Dermatology Treatments for Acne Scars

Subcision is among the most effective treatments for depressed acne scars, but many patients achieve the best results when it’s combined with complementary in-office treatments. Dr. Green tailors these combinations to each patient’s skin type, scar severity, and aesthetic goals.

Dermal fillers, including Restylane and Sculptra, are often paired with subcision to restore volume in depressed scars and stimulate additional collagen production for firmer, smoother skin.

Laser treatments such as Fraxel, Vivace, eMatrix, and Clear + Brilliant can improve overall skin tone and texture after subcision. Fraxel creates a series of micro-injuries over five to six sessions to boost collagen; Vivace combines radiofrequency with microneedling; and eMatrix and Clear + Brilliant are safe options for all skin types, including darker skin tones, with minimal risk of hyperpigmentation.

The VBeam laser, a 595-nanometer pulsed dye laser, targets broken blood vessels and post-inflammatory hyperpigmentation, reducing redness and stimulating new collagen growth over multiple sessions.

TCA cross applies a trichloroacetic acid solution — also known as trichloracetic acid — directly to atrophic acne scars, including ice-pick, rolling, and boxcar scars, to boost collagen and elastin production. However, it should be avoided in patients with darker skin tones due to the risk of pigmentation changes.

Chemical peels, ranging from superficial to medium-depth, use exfoliating acids such as TCA to resurface the skin and accelerate cell turnover, while Mesopeels containing tranexamic acid can help fade post-inflammatory hyperpigmentation from prior breakouts.

Microneedling, or collagen induction therapy, creates controlled micro-injuries in the epidermis to stimulate collagen production and improve skin texture. Adding PRP or a depigmentation serum during treatment can further reduce pigmentation and enhance results.

Frequently Asked Questions (FAQs) for acne scar subcision treatment:

Does subcision work for Acne scars?

Yes, subcision is highly effective for atrophic acne scars, including rolling and boxcar scars, that appear as depressions—these form when inflammation leads to fibrous tissue rather than adequate collagen during healing. However, subcision is not appropriate for keloid scars or most hypertrophic scars caused by excess collagen; these often respond better to the VBeam laser or intralesional cortisone injections. To determine whether subcision is right for your acne scars, it’s best to consult a board-certified dermatologist like Dr. Michele Green in NYC.

How do you prepare for a subcision treatment?

Preparing for subcision begins with a consultation with Dr. Michele Green to evaluate your acne scars and discuss your goals. Patients should avoid blood thinners and anti-inflammatory medications such as Advil, Motrin, and Aleve for about a week before treatment to minimize bruising. Dr. Green will have you apply a local anesthetic cream to numb the treatment area about an hour before the procedure.

What are the side effects of subcision treatment?

When performed by a skilled, board-certified dermatologist like Dr. Green, When performed by a skilled, board-certified dermatologist like Dr. Green, subcision is a safe, minor surgical procedure with minimal downtime. Mild side effects, including bruising, a small hematoma, swelling, and tenderness at the treatment site, typically resolve on their own within a week. To reduce the risk of bruising, Dr. Green advises patients to avoid blood thinners and anti-inflammatory medications, such as Advil, Motrin, and Aleve, for one week before treatment.

Does subcision for acne scars hurt?

Subcision is generally well tolerated, since a local anaesthetic is applied to the treatment area beforehand to prevent discomfort. For patients seeking additional comfort, Dr. Green may use tumescent anaesthesia, which involves injecting a diluted anesthetic solution beneath the skin to make it easier to release scar tissue with minimal sensation.

Microneedling vs. Subcision:

Microneedling and subcision both improve the appearance of acne scars, but they work differently. Microneedling stimulates the skin’s natural healing process to boost collagen production, softening skin texture and reducing fine lines and mild-to-moderate scarring. Subcision, on the other hand, physically releases the fibrous bands beneath depressed scars and is often paired with dermal fillers to restore volume. Patients with significant volume loss from depressed acne scars typically see better results from subcision, while those with milder texture irregularities may benefit most from microneedling. Dr. Green often combines both approaches for patients with multiple types of acne scars.

What’s the difference between needle and cannula subcision?

Needle subcision typically uses a small needle, such as an 18- or 20-gauge Nokor needle, to precisely target individual scars. In contrast, cannula subcision uses a blunt cannula to treat larger areas of scarring more broadly with less risk of bruising. Dr. Green selects the appropriate technique, or a combination of both, based on the location, depth, and number of acne scars being treated.

Subcision vs microneedling vs TCA CROSS — which is better?

Subcision, microneedling, and TCA cross all improve acne scars, but each works best for different scar types and goals. Subcision is most effective for depressed, tethered scars such as rolling and boxcar scars; microneedling gently improves overall skin texture; and TCA cross specifically targets small, deep ice-pick scars. A 2016 study in the International Journal of Research in Medical Sciences found that subcision outperformed both CO2 fractional lasers and dermaroller treatments for acne scars.

Which comes first: subcision or other treatments?

Subcision is typically performed first because releasing the fibrous bands beneath a scar allows subsequent treatments, such as dermal fillers or laser resurfacing, to work more effectively on a foundation that’s already been lifted.

How much does subcision cost?

The cost of subcision varies based on the number of sessions required, the severity of your acne scars, and whether dermal fillers are included in the treatment plan. During your consultation, Dr. Green will recommend the appropriate approach for your scars and provide a detailed cost breakdown.

What is the aftercare after subcision?

After subcision, patients should keep the treatment area clean, avoid strenuous exercise for a few days, and continue to avoid blood thinners and anti-inflammatory medications to minimize bruising and swelling. Most side effects resolve within a week, after which patients can resume their normal skincare routine.

How long does it take for subcision to heal acne scars?

Subcision is a minor surgical procedure with minimal downtime; most patients are fully healed within about a week, once temporary bruising, swelling, and tenderness resolve.

Do scars reattach after subcision?

Once the fibrous bands beneath a scar are broken, they do not reattach, which is why subcision provides permanent improvement for that scar. However, new acne scars can still form if a patient continues to experience active breakouts, so ongoing acne should be treated to protect your results.

Is subcision safe for darker skin tones?

Subcision is safe for all skin tones and carries no meaningful risk of triggering pigmentation changes. However, certain complementary treatments, such as TCA cross, should be used cautiously or avoided in darker skin tones due to a higher risk of post-inflammatory hyperpigmentation. Options like eMatrix and Clear + Brilliant lasers are considered safe alternatives for all skin types.

Can subcision be done at home?

No — subcision is a surgical procedure that should be performed only by a trained, board-certified dermatologist such as Dr. Michele Green. Attempting subcision at home carries serious risks, including infection, scarring, nerve damage, and unsatisfactory cosmetic results. Patients should always seek treatment at a reputable medical practice.

How long until you see results?

Patients notice an immediate lift in their depressed acne scars right after treatment, as the fibrotic strands that hold the skin down are released. Additional smoothing occurs gradually over the following weeks and months as new collagen production continues to rebuild the treated area.

How to get started with subcision acne scar treatment today

Acne scars, including depressed scars such as rolling and boxcar scars, can be difficult to live with. Still, subcision is a proven, minimally invasive procedure that breaks apart the fibrous bands responsible for these indentations and helps restore smoother skin over time. Whether used alone or combined with dermal fillers, microneedling, chemical peels, or laser resurfacing, subcision has helped countless patients feel more confident in their skin. Dr. Michele Green offers a full range of these treatment options at her private NYC dermatology practice.

Dr. Green is an internationally renowned, board-certified dermatologist with over 25 years of experience providing patients worldwide with top non-invasive treatments, including options for acne scars. She is consistently ranked among NYC’s best dermatologists by Castle Connolly, New York Magazine, Super Doctors, and The New York Times. Her holistic, ‘less is more’ approach helps patients look and feel like the best version of themselves. Contact us online today or call 212-535-3088 to schedule a consultation with Dr. Green and learn which subcision treatment plan is right for your acne scars.