Understanding Boxcar Scars: A Closer Look

Boxcar scars are a common type of atrophic acne scar. They appear as round or oval depressions with sharp vertical edges and are often wider than ice pick scars but narrower than rolling scars. These indentations form when the skin cannot produce enough collagen during healing after inflammatory acne or chickenpox. While not medically harmful, boxcar scars can affect the appearance of your skin and self‑confidence.

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What Are Boxcar Scars?

Boxcar scars make up a significant portion of atrophic acne scars. They look like small craters in the skin and may be the same colour as surrounding skin or appear slightly darker. Shallow scars often respond better to treatment, while deeper scars may require more intensive procedures to improve their appearance. Boxcar scars typically do not disappear completely on their own, although they may fade over time.

Causes & Risk Factors

These scars develop when the skin’s natural healing response does not produce enough collagen to fill in the area where a pimple or lesion has damaged tissue. Factors that can increase the risk of boxcar scars include:

  • Inflammatory acne: Cystic and nodular acne cause deeper inflammation and are more likely to leave scars if not treated promptly.
  • Untreated breakouts: Leaving inflammatory acne untreated for long periods increases the likelihood of scarring.
  • Popping or picking: Squeezing or picking at pimples and cysts can create open wounds, disrupting healing and leading to scars.
  • Chickenpox: The healing process after chickenpox can leave boxcar‑like depressions in some people.
  • Genetics: A family history of acne scarring may make certain individuals more prone to developing atrophic scars.

Treatment Options

No single therapy fits everyone; your skin type, the depth and location of scars and your overall health determine the best approach. In many cases, combining treatments yields the most improvement. Common procedures include:

  • Microdermabrasion and dermabrasion: These resurfacing techniques remove the top layer of skin to encourage new collagen formation. Microdermabrasion is less invasive and best for shallow scars, while dermabrasion penetrates deeper but causes more redness and requires downtime.
  • Chemical peels: Superficial or medium peels use acids such as glycolic or trichloroacetic acid to exfoliate the outer layers of skin. They promote regeneration of smoother skin but may cause redness and flaking.
  • Microneedling: A device with fine needles punctures the scar tissue to stimulate collagen production. Microneedling can improve both the texture and firmness of skin and often requires multiple sessions.
  • Laser therapy: Ablative lasers remove thin layers of skin and produce significant collagen stimulation, while non‑ablative lasers target deeper tissue with less downtime. Ablative treatments are considered highly effective for acne scars but can cause temporary redness, swelling and sun sensitivity.
  • Fillers: Hyaluronic acid or other fillers are injected beneath the scar to lift depressed areas. Fillers provide immediate improvement but are generally temporary and may need to be repeated every few months or years.
  • Punch excision and subcision: Surgical techniques remove individual scars or release fibrous bands under the skin. They are useful for deep scars that do not respond to resurfacing treatments.

Because boxcar scars vary from person to person, an in‑person consultation with a qualified dermatologist or aesthetic specialist is essential. They will assess your skin, discuss realistic outcomes and develop a personalised treatment plan.

Prevention & Early Intervention

The best way to minimise boxcar scarring is to prevent inflammatory breakouts from causing deep tissue damage. To reduce your risk:

  • Treat acne early: Seek professional help for cystic or nodular acne. Prescription‑strength topical treatments, retinoids and antibiotics can control severe breakouts and lower the risk of scarring.
  • Don’t pick at pimples: Resist the urge to pop or squeeze blemishes, which can push infection deeper and disrupt healing.
  • Protect your skin: Follow a gentle skincare routine, wear broad‑spectrum sunscreen daily and avoid harsh scrubs that irritate inflamed skin.
  • Maintain a healthy lifestyle: Eat a balanced diet, manage stress and get enough sleep to support your skin’s natural repair mechanisms.

Considering Treatment for Acne Scars?

Albany Laser & Cosmetic Clinic offers comprehensive solutions for acne scarring, including boxcar scars. Our experienced team will evaluate your skin and recommend customised treatments such as microneedling, laser resurfacing or surgical techniques. Together we can help you regain smoother, more even skin.

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Author and Review

This page was created by the Albany Cosmetic & Laser Centre team. It was most recently reviewed for medical accuracy on 19 July 2025 by Dr. Kamal Alhallak (Ph.D.) and Dr. Tomi (M.D.), who are both trained in laser and aesthetic medicine. We adhere to guidelines for reliable health information and encourage readers to consult healthcare providers for personalized advice.