Rolling, Boxcar or Ice-Pick Acne Scars: Why the Scar Type Changes the Treatment

Date 15 Oct 2026  

The three common types of depressed acne scars include:

  • Rolling scars create a wavy, uneven skin texture
  • Boxcar scars appear as round or oval depressions with defined edges
  • Ice-pick acne scars form small, narrow openings that extend deep into the skin

Introduction

Not all acne scars are the same, so why should their treatments be?

Acne scars differ in shape, depth, and how they affect the skin. Understanding these differences is important because a treatment that works for one scar type may not be equally effective for another.

A 2026 study published in the Indian Journal of Dermatology, Venereology and Leprology examined 49 acne scars and found that ice-pick scars had an average depth of approximately 1.93 mm, compared with 1.33 mm for boxcar scars.

These differences explain why acne scar treatment cannot follow a one-size-fits-all approach. Identifying the scar type helps dermatologists choose a treatment suited to its structure and depth.

In this blog, we will explore the differences between rolling, boxcar and ice-pick acne scars, why scar type matters and how it influences the choice of treatment.

Understanding the Three Main Types of Acne Scars

Acne scars can form when severe inflammation damages the skin and affects collagen production during healing.

When the skin does not produce enough collagen to repair the damaged area, it can leave behind depression. These are known as atrophic acne scars.

The three main types are rolling, boxcar and ice-pick scars. Each has a different shape and depth.

Rolling Scars – Broad, Wave-Like Depressions

Rolling scars are wide, shallow depressions that give the skin an uneven or wavy appearance.

  • They have smooth, sloping edges rather than sharp borders
  • They often develop when fibrous bands beneath the skin pull the surface downwards
  • They are commonly seen on the cheeks

Boxcar Scars – Defined Edges and Visible Depressions

Boxcar scars are round or oval depressions with clearly defined edges. They can vary in depth.

  • They usually have sharp edges and a flat or relatively even base
  • They may be shallow or deep, depending on the extent of skin damage
  • Their depth plays an important role in choosing the right treatment

Ice-Pick Scars – Narrow but Deep

Ice-pick scars are small, deep scars that look like tiny holes in the skin.

  • They have narrow openings and typically extend deeper into the skin
  • They often have a V-shaped appearance
  • Their depth makes it harder to improve with surface treatments alone

Each scar type affects the skin differently, which is why identifying its shape and depth is important before choosing a treatment.

Why Does the Type of Acne Scar Change the Treatment?

Different types of acne scars affect the skin in different ways. Some are shallow, while others extend deeper into the skin or are attached to underlying tissue. This is why the structure of an acne scar plays an important role in selecting the right treatment.

Three key factors influence treatment selection:

1. Scar Depth: Shallow scars may respond to treatments that improve the skin's surface. Deeper scars often require targeted procedures to address damage to the skin.

2. Scar Shape: Rolling scars have broad depressions, boxcar scars have defined edges, and ice-pick scars form narrow, deep pits. Each shape requires a different treatment approach.

3. Underlying Tissue: Some scars are pulled down by fibrous bands beneath the skin. These attachments may need to be released before the skin's appearance can improve.

Since these characteristics vary, a single treatment may not provide the same results for every acne scar type.

Not sure whether your scars are rolling, boxcar or ice-pick?

At Eternelle Aesthetics, Hyderabad, every treatment plan begins with a careful in-person assessment of your scar type, depth and skin, so the procedures recommended suit your skin.

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Which Treatments Work for Different Types of Acne Scars?

Acne scar treatments are selected based on the scar's shape, depth and underlying tissue damage. Some procedures improve the skin's surface, while others target deeper scars or release tissue pulling the skin down.

Treatments for Rolling Acne Scars

Rolling acne scars often develop when fibrous bands beneath the skin pull the surface downwards. Treatments focus on releasing these bands and improving skin texture.

  • Subcision: A procedure that releases fibrous bands beneath the skin, allowing depressed areas to lift
  • Dermal Fillers: Help raise selected depressed scars and create a smoother skin surface
  • Laser Resurfacing or Microneedling: Stimulate collagen production to improve skin texture. These may also be combined with subcision

Treatments for Boxcar Acne Scars

Boxcar acne scars have defined edges and can be shallow or deep. Treatment depends mainly on their depth and severity.

  • Fractional Laser Resurfacing: Helps improve shallow scars by stimulating collagen production and softening their edges.
  • Microneedling: Creates controlled micro-injuries in the skin to encourage collagen production and improve selected shallow scars.
  • Punch Elevation or Excision: May be used for deeper boxcar scars to raise or remove the affected scar tissue.

Treatments for Ice-Pick Acne Scars

Ice-pick scars extend deep into the skin, making them more difficult to improve with surface treatments alone.

  • TCA CROSS: Applies a concentrated chemical solution directly inside the scar to encourage collagen formation and reduce its depth.
  • Punch Excision: Removes selected deep scars using a small surgical instrument, allowing the area to heal.

Because ice-pick scars are narrow and deep, treatments such as microneedling or laser resurfacing alone may provide limited improvement.

The most suitable treatment depends on individual scar characteristics, skin type and a dermatologist's assessment. Some patients may require a combination of procedures for better improvement.

Doctor's Note

Acne scar treatment is usually gradual. Collagen remodelling continues for weeks after a session, so improvement is often assessed over a few months rather than immediately. Active breakouts are generally brought under control before scar procedures begin.

Can You Have More Than One Type of Acne Scar?

Yes, it is common to have more than one type of acne scar on the same area of skin. Rolling, boxcar and ice-pick scars can appear together, particularly on the cheeks. Since these scars differ in shape and depth, treating them may require different approaches.

Dermatologists may recommend a combination of treatments based on the scars present:

  • Rolling Scars: Subcision may help release the fibrous bands pulling the skin downwards.
  • Boxcar Scars: Laser resurfacing or microneedling may improve shallow depressions and skin texture.
  • Ice-Pick Scars: TCA CROSS or punch excision may help address deeper, narrow scars.

The treatment plan depends on the type, depth and severity of each scar. Combining suitable procedures may help improve overall skin texture and achieve more consistent results.

How Does a Dermatologist Decide Which Treatment Is Right?

Choosing the right acne scar treatment begins with a detailed skin assessment. A dermatologist examines the scars and the patient's skin condition to determine which procedures may provide suitable results.

The main factors considered during the assessment include:

  • Scar Type and Depth: Identifying whether scars are rolling, boxcar or ice-pick and how deep they extend.
  • Number and Location: Assessing how many scars are present and where they appear on the skin.
  • Skin Type: Evaluating skin characteristics and the risk of pigmentation changes after treatment.
  • Active Acne: Checking for ongoing breakouts that may need treatment first.
  • Treatment Expectations: Considering possible improvement, recovery time and potential side effects.

Based on these findings, the dermatologist develops a personalized treatment plan that addresses the patient's specific scar types and skin concerns.

Doctor's Note

For Indian skin types, the risk of post-inflammatory hyperpigmentation is an important consideration. Treatment settings, the choice of procedure and aftercare such as daily sun protection are planned with this in mind.

Conclusion

Rolling, boxcar and ice-pick acne scars differ in shape, depth and how they affect the skin. Understanding these differences is important because no single treatment works equally well for every scar type.

The right treatment depends on identifying the scars correctly and selecting procedures that address their specific characteristics. While complete scar removal may not always be possible, a personalized treatment plan can help improve skin texture and reduce the appearance of scars.

At Eternelle Aesthetics, we understand that every skin concern is different. For those looking for acne scar treatment jubilee hills, our approach focuses on assessing individual skin needs and recommending suitable treatment options.

Not sure which type of acne scars you have?

Book a consultation with Eternelle Aesthetics to explore treatment options suited to your skin. You'll get an honest assessment of your scars and only the procedures your skin needs.

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Frequently Asked Questions (FAQs)

1. How can I tell whether I have rolling, boxcar or ice-pick acne scars?

Rolling scars create wide, wave-like depressions, while boxcar scars have round or oval shapes with defined edges. Ice-pick scars appear as small, narrow and deep holes in the skin. A dermatologist can examine your skin to identify the scar types accurately.

2. Which type of acne scar is the hardest to treat?

Ice-pick scars are often more challenging to treat because they extend deep into the skin. They may require targeted procedures such as TCA CROSS or punch excision rather than surface treatments alone.

3. Can laser treatment improve all three types of acne scars?

Laser resurfacing can help improve certain acne scars by stimulating collagen production. However, its effectiveness depends on the scar type and depth. Deep ice-pick scars and tethered rolling scars may require additional or different procedures.

4. Why might I need more than one treatment for acne scars?

Many people have a combination of rolling, boxcar and ice-pick scars. Since each type responds differently to treatment, dermatologists may recommend combining procedures to address different scar characteristics and improve overall skin texture.

5. Can acne scars be removed permanently?

Acne scar treatments can provide long-lasting improvements, but complete removal is not always possible. Results depend on the type of scar, severity, skin condition and treatment used. The goal is generally to make scars less noticeable and improve skin texture.

6. How many sessions are needed to treat acne scars?

The number of sessions depends on the scar type, depth and selected treatment. Some procedures may produce improvement after one session, while others require multiple sessions. A dermatologist can recommend a suitable treatment schedule after assessing your scars. For more skin and aesthetics guides, explore our blogs.