Types of acne scars refer to different forms of skin damage after acne, including atrophic scars (ice pick, boxcar, rolling) and hypertrophic or keloid scars. Identifying acne scar types is essential to guide effective treatments such as laser therapy, subcision, microneedling, or dermal fillers for optimal skin improvement.
What Are Acne Scars?
Difference Between Acne Marks & True Acne Scars
Many Malaysians confuse Post-Inflammatory Hyperpigmentation (PIH) or erythema with scarring. Acne marks are flat discolorations (red or brown) that eventually fade. True acne scars involve a permanent change in skin texture, either as a depression or a raised lump, caused by damaged dermal collagen.
How Acne Scars Form
Scars form when deep breakouts damage the skin and the tissue beneath it. When the body attempts to repair this damage, it produces either too little or too much collagen. This imbalance results in the visible “dents” or “bumps” we recognize as clinical acne scarring.
The Main Categories of Acne Scars
Atrophic Scars (Depressed or Indented)
Atrophic scars are the most prevalent type among acne sufferers. These are characterized by a loss of tissue, leading to depressions in the skin’s surface. They occur when the body fails to generate enough fibroblastic repair tissue during the healing process of inflammatory acne.
Hypertrophic & Keloid Scars (Raised)
Unlike depressions, raised scars are caused by an overproduction of collagen. These firm, thickened bumps sit above the skin’s surface. In Malaysia, certain genetic predispositions make these types particularly common on the jawline, chest, and back areas after severe cystic breakouts.
Types of Atrophic Acne Scars
Rolling Scars
Rolling scars have smooth, rounded edges that create a “wavy” texture. They are caused by fibrous bands of tissue that pull the epidermis toward deeper structures. These scars are often widespread and become more noticeable as we age and lose skin elasticity.
Boxcar Scars
Boxcar scars are broad, crater-like depressions with sharply defined, vertical edges. Similar to chickenpox scars, they can be shallow or deep. These form when an inflammatory breakout destroys the collagen, leaving a specific area of the skin without structural support.
Ice Pick Scars
Ice pick scars are narrow, deep, and “V-shaped” pits that look like the skin has been punctured by a sharp tool. Because they extend deep into the dermal layers, they are notoriously difficult to treat with standard surface-level skincare or mild chemical peels.
Hypertrophic & Keloid Acne Scars
Hypertrophic Scars
These are raised, firm scars that stay within the boundary of the original acne lesion. They often develop on the torso but can appear on the face. Over time, they may decrease in size slightly, but usually require medical treatment to flatten significantly.
Keloid Scars
Keloids are a more aggressive form of raised scarring that grows beyond the original site of the pimple. They are rubbery, itchy, and common in Asian skin types. Without intervention, keloids can continue to expand, making early dermatological consultation essential for management.
How to Identify Your Acne Scar Type at Home
The Lighting Test
Stand in a room with overhead lighting or use a flashlight at an angle. Side-lighting creates shadows that emphasize the depth of ice pick scars and the “hills and valleys” of rolling scars. This makes textural irregularities much easier to spot than in flat, front-facing light.
The Stretch Test
Gently stretch the skin around a scar. If the depression disappears or flattens, it is likely a rolling scar held down by internal tethers. If the scar remains visible and the edges stay sharp, you are likely looking at a boxcar or ice pick scar.
Feeling the Texture
Run a clean finger over the area. Rolling scars feel like soft undulations, while boxcar and ice pick scars feel like distinct “holes.” Hypertrophic or keloid scars will feel like firm, raised knots or ridges that resist the pressure of your touch.
Which Acne Scar Types Are Most Common in Malaysia?
Rolling & Boxcar Scars
Due to the prevalence of inflammatory acne in Malaysia’s humid environment, rolling and boxcar scars are extremely common. Many patients present with a “mixed” scarring pattern on the cheeks, where underlying fibrous tethers create a combination of texture issues and deep depressions.
Keloid Scars on Jawline, Chest & Back
Genetics play a huge role in Malaysia’s clinical landscape. Many individuals of Malay, Chinese, and Indian descent are prone to keloid formation. These often appear along the jawline after “maskne” or on the back and chest following bouts of truncal acne.
Why Identifying Your Acne Scar Type Matters for Treatment
Ice Pick Scars Need TCA Cross or Punch Excision
Traditional lasers often can’t reach the bottom of an ice pick scar. Instead, treatments like TCA CROSS (Chemical Reconstruction of Skin Scars) use high-concentration acid to trigger healing from the base. This targeted approach is far more effective for deep, narrow pits.
Rolling Scars Respond Best to Subcision
Because rolling scars are anchored by internal bands, they require mechanical release. Subcision involves using a needle to break these tethers, allowing the skin to lift. Without this step, even the most expensive lasers may fail to level the skin.
Boxcar Scars Improve With Laser or Microneedling
Boxcar scars benefit from treatments that “plane” down the sharp edges and stimulate collagen. Fractional CO2 lasers or RF Microneedling are excellent for remodeling the skin’s surface, making the crater walls less visible and blending the scar with surrounding tissue.
Keloid Scars Require Steroid Injections
Using a laser on a keloid can sometimes make it worse. The standard treatment involves intralesional steroid injections to reduce inflammation and flatten the scar. This medical approach addresses the overactive collagen production that characterizes raised, itchy keloid tissue.
Treatment Options in Malaysia by Acne Scar Type
| Scar Type | Primary Treatment | Expected Result |
| Ice Pick | TCA Cross / Punch Graft | Depth reduction |
| Rolling | Subcision / Dermal Fillers | Smoother surface contour |
| Boxcar | CO2 Laser / Microneedling | Edge softening |
| Keloid | Steroid Injections | Flattening and itch relief |
For Ice Pick Scars (TCA Cross, Punch Graft)
In Malaysian clinics, TCA Cross is a popular, cost-effective method for ice pick scars. If the scar is exceptionally deep, a doctor might suggest a punch graft, where the scar is physically removed and replaced with a small piece of skin from behind the ear.
For Rolling Scars (Subcision, Fillers)
Subcision is often paired with biostimulators or fillers in KL and Selangor. The filler acts as a spacer, preventing the scar from re-tethering while the body produces new collagen to fill the void created during the procedure.
For Boxcar Scars (CO2 Laser, Fractional Laser)
Fractional CO2 Laser is the gold standard for boxcar scars in Malaysia. By creating micro-channels of heat, the laser forces the skin to regenerate. Patients with Fitzpatrick Skin Types IV-VI should ensure their provider uses safe settings to avoid hyperpigmentation.
For Keloid Scars (Steroid Injections, Silicone Gel)
Steroid injections are the first line of defense. Once the scar is flat, doctors may recommend long-term use of silicone gel sheets. This combination helps maintain the results and prevents the keloid from recurring, which is a common frustration for many patients.
Frequently Asked Questions (FAQ)
Can I Have Multiple Types of Acne Scars at Once?
Yes, most Malaysians have “polymorphic” scarring—a mix of rolling, boxcar, and ice pick scars. A comprehensive treatment plan usually involves combining different modalities, such as subcision for rolling scars and lasers for boxcar texture, in a staggered approach.
Will Acne Scars Go Away on Their Own?
Unfortunately, true acne scars (atrophic or hypertrophic) are permanent changes in tissue and will not disappear without medical intervention. While they may soften slightly over many years, only professional clinical treatments can significantly restore the skin’s original smoothness and volume.
How Do I Know If My Scar Is Rolling or Boxcar?
Look at the edges. If the borders are sloping and gentle, it’s a rolling scar. If the edges are steep, sharp, and resemble a “u-shape” or “box,” it is a boxcar scar. The stretch test also confirms if tethering is present.
Conclusion of Types of acne scars
Correct scar identification is the secret to a successful transformation. Whether you are dealing with deep ice pick pits or tethered rolling scars, Malaysia offers world-class aesthetic solutions tailored to your specific type. Don’t waste time on one-size-fits-all fixes—consult a professional for a targeted plan.