How are boxcar acne scars treated? Each type of scar has its own set of suitable treatment options. Choosing the right treatment is essential for achieving the best possible scar improvement. Let’s explore the treatment options for Boxcar acne scar in this article
Quick answer: Boxcar acne scar can be treated using a combination of methods, including subcision, fractional CO₂ laser, RF microneedling, or TCA CROSS.
What are Boxcar acne scar? Key characteristics
Boxcar acne scar, also known as square-shaped scars, are a type of atrophic acne scar that account for approximately 20–30% of acne scars. They develop when inflammatory acne damages the dermis and destroys collagen and supporting tissue beneath the skin. This type of scar is commonly seen in people with a history of moderate to severe inflammatory acne or prolonged, poorly controlled acne.

Boxcar acne scar can be identified by the following characteristics:
- Round, oval, or rectangular in shape.
- Well-defined edges, with scar walls that are almost perpendicular to the skin surface, creating a distinct depression separated from the surrounding skin.
- A relatively flat and shallow base.
- The scars are usually larger than ice pick scars, measuring approximately 1.5–4 mm or more.
- When viewed directly, boxcar scars may not appear very prominent. However, under side lighting or when viewed from an angle, the depressions become more visible, with sharply defined edges that are clearly separated from the surrounding skin.
- Often concentrated on the cheeks, temples, or areas previously affected by prolonged inflammatory acne.
How are Boxcar acne scars treated?
Although they are all classified as Boxcar acne scar, individual scars can differ in depth, the degree of fibrous tethering, and may coexist with other types of acne scars. Therefore, treating Boxcar acne scar often requires a combination of different techniques rather than relying on a single treatment. Depending on the scar characteristics and overall skin condition, Wedo doctors develop a personalized treatment plan for each patient. In general, boxscars may respond well to the following treatments:
Laser
Laser generates thermal energy to stimulate collagen remodeling, thereby improving skin texture. This method is suitable for shallow Boxcar acne scar where the scar base is close to the skin surface and there is limited fibrous tethering. The choice of laser wavelength depends on the individual scar characteristics and is adjusted based on the skin’s response after each treatment session.
RF Needling
Microneedles that deliver RF energy create controlled micro-injuries in the skin, stimulating the body to produce collagen and elastin as part of the natural healing process, thereby supporting skin remodeling and scar filling.
TCA CROSS
The doctor uses a wooden applicator to apply a high concentration of trichloroacetic acid to the base of each scar, creating a localized inflammatory response that stimulates the formation of new collagen fibers. TCA CROSS is commonly used for localized scars with well-defined edges.
Subcision

The doctor uses a cannula to cut through the fibrous tissue pulling down the scar base, releasing the base that is tethering the dermis while creating controlled wounds to stimulate collagen production. Subcision is suitable for deep Boxcar acne scar.
Mesotherapy
Mesotherapy is an effective adjunctive treatment in acne scar protocols in general and Boxcar acne scar in particular. The doctor uses a needle to deliver active ingredients deep into the skin. These nutrients support cellular nourishment, stimulate collagen production, and promote faster skin recovery after treatment sessions. The doctor may use the following substances:
- PRP (platelet-rich plasma): Prepared from the patient’s own blood, helping ensure safety and minimize the risk of irritation.
- Growth factors
- Exosome-derived secretome
Where to get reliable boxscar treatment?
Throughout the treatment of boxscars, from examination and treatment planning to the actual procedure, the doctor’s role is always prioritized. A highly qualified doctor can accurately assess the scar condition and develop an appropriate treatment plan to improve outcomes, reduce costs, and shorten treatment time. Wedo Skin Clinic has a team of qualified dermatologists with comprehensive training and years of hands-on experience. In addition, its genuine medical equipment provides valuable support throughout the treatment process.
You can view feedback and treatment results from selected cases in the Results section.
Conclusion
Treating boxcar scars is a long-term process that requires close cooperation between the doctor and the patient. Understanding this type of scar and choosing a reputable treatment facility can help ensure a more direct and safer treatment journey.
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