Skin · 5 min read · Updated · Prepared by Dr Roohi's Skin & Hair Clinic
Marks vs scars
Flat brown or dark marks left after pimples are called post-inflammatory hyperpigmentation. They are a colour change, not damage to the skin's structure, and they often fade with sunscreen, medical creams and peels.
True scars change the surface of the skin. Most acne scars are atrophic — small dips or pits caused by the loss of collagen during deep inflammation.
Types of acne scars
Knowing the type helps the dermatologist choose the right treatment.
- Rolling scars — wide, shallow waves that give skin an uneven look.
- Boxcar scars — broad depressions with sharp edges.
- Ice-pick scars — narrow, deep pits.
- Hypertrophic scars — raised scars, more common on the chest and back.
How acne scars are treated
MNRF (Microneedling Radiofrequency) delivers energy into the dermis to stimulate new collagen, gradually lifting rolling and boxcar scars and tightening open pores. Chemical peels improve surface texture and marks, and carbon peel helps oily skin with enlarged pores.
Most people need a combination of treatments over a few months. Your dermatologist will examine your scars and recommend a plan with realistic expectations.
Frequently asked questions
Can acne scars go away on their own?
Dark marks often fade with time and sun protection. Pitted scars usually do not disappear on their own and need in-clinic treatment to improve.
This guide is general health information, not a diagnosis. Skin and hair conditions vary from person to person — please consult a dermatologist before starting any treatment or medicine.