Acne scarring is a common and frustrating issue that can persist long after the acne itself has cleared. These scars can be a source of lasting insecurity, affecting one's confidence and appearance. However, by understanding what causes acne scarring, you can take the first steps toward finding the right treatment to improve your skin.
What Causes Acne Scarring?
Acne scars form when inflammation and infection in the pores of the skin go unchecked, causing damage to the underlying tissues. When your skin attempts to repair this damage, it produces scar tissue. The type of scar that forms depends on how the healing process occurs.
Atrophic Scars: These scars develop when the body produces too little scar tissue, or when the healing is disrupted by continuous inflammation or infection. This results in pockmarks or indentations in the skin. Atrophic scars are categorized by their shape:
Boxcar Scars: Broad, shallow depressions with well-defined edges.
Icepick Scars: Deep, narrow indentations resembling the mark of a sharp object.
Rolling Scars: Smooth, wave-like depressions caused by damage beneath the skin’s surface.
Hypertrophic and Keloid Scars: These occur when the body produces too much scar tissue, resulting in raised scars. The key difference between them is that hypertrophic scars remain within the boundaries of the original wound, while keloids extend beyond those boundaries.
Factors Contributing to Acne Scarring
Several factors can increase the likelihood of scarring:
Severity and Duration of Acne: More severe or prolonged acne increases the risk of deep scarring.
Genetics: Some individuals are more prone to scarring due to genetic factors.
Picking or Squeezing Pimples: This can worsen inflammation and lead to scarring.
In addition to the physical indentations, acne can also cause pigmentary changes, leaving the skin with dark spots or red areas. While not technically scars, these pigmentation issues can still be bothersome.
Effective Treatments for Acne Scarring
The good news is that there are a variety of treatments available to reduce the appearance of acne scars. Here are a few options:
Microneedling with Radiofrequency (RF): This treatment involves using tiny needles to create controlled micro-injuries in the skin, stimulating collagen production. The addition of RF energy enhances this process by heating the deeper layers of the skin, further promoting collagen and elastin production. This treatment is highly customizable and effective for various skin types and scar severities, leading to smoother, firmer skin over time. Multiple sessions are usually required for optimal results.
Injectable Treatments with Polynucleotides and Subcision: This combination treatment is particularly effective for deep, atrophic scars. Subcision involves breaking up the fibrous tissue holding down the scar, while polynucleotides are injected to stimulate skin regeneration. This approach helps lift and smooth depressed scars, promoting the formation of healthy new tissue.
Laser Resurfacing: Lasers can be a powerful tool in reducing the depth and appearance of scars. Ablative lasers, like carbon dioxide or erbium YAG lasers, remove the top layer of skin, encouraging new tissue growth. Another option is Pico Laser, which uses ultra-short pulses to break down scar tissue while stimulating collagen production. This treatment can leave your skin smoother and more even-toned.
Steroid Injections for Hypertrophic Scars and Keloids: For raised scars, steroid injections can help flatten and soften the appearance of these stubborn scars.
Finding the Right Treatment
Each person's skin is unique, and treating acne scars often requires a combination of treatments for the best results. It's important to consult a skincare professional who can assess your specific skin type and scarring to recommend the most suitable treatment plan. With the right approach, you can significantly improve the appearance of acne scars and achieve smoother, more even-toned skin.
Medically reviewed by Dr. Harold Ma, and Dr. Chester Lan.