In short. How to classify your own acne scarring, depressed, tethered, red or mixed, and why that classification drives the choice between laser and microneedling.
Key points
- Look at your cheek in good light with the skin relaxed, then again while you smile or pull the skin gently sideways.
- Scars that stay put and read as pits are depressed.
- Scars that pull inward and follow the movement are tethered.
Most people arrive at this comparison holding a treatment rather than a question: they have read about laser, or about needling, and want to know which is the answer. The more useful starting point is the other way round. Describe the scarring accurately, and the treatment follows from it. Two people whose scarring looks equally marked may need entirely different plans.
Four patterns, not one
Acne scarring is not one condition. Depressed scars sit below the level of the surrounding skin and are what most people mean by pitted. Tethered scars are held down by a fibrous band, so they pull the skin inward when the surrounding skin is stretched. Broad scarring with redness is flatter and colour dominates: the surface is only slightly uneven, but the area reads as discoloured long after the acne settled. Mixed patterns are what most people have, and they are why a single treatment often satisfies nobody.
Why tethering is the question that matters most
A tethered scar behaves differently from one that is not, and that difference most often decides between the two options here. A tether is mechanical: something is pulling the skin down and holding it. Microneedling reaches it, because the injury it makes is delivered beneath the surface and works on that band. Fractional laser works from the surface inward, resurfacing what is visible. Where the dominant problem is a deep tether, resurfacing alone commonly changes less than the patient expected.
Reading your own scarring
Look at your cheek in good light with the skin relaxed, then again while you smile or pull the skin gently sideways. Scars that stay put and read as pits are depressed. Scars that pull inward and follow the movement are tethered. If colour is what you notice rather than depth, redness dominates. Write down what you see.
Where redness and colour fit
Redness that persists after acne has settled is a change in the skin rather than a scar, and in many people it fades on its own over months. It also changes what treatment should aim at. A plan built only to resurface texture does not necessarily change colour, and a plan aimed only at colour leaves texture as it was.
What severity does and does not tell you
Severity describes how much scarring there is, not what kind. It does not describe how deep a tether runs, how the skin will heal or how much pigment risk the patient carries. That is why this site is organised around type rather than severity.
What should slow the decision down
- A treatment named before anyone has examined whether the scars are tethered.
- Active acne, an active infection, or a recent course of isotretinoin.
- A plan that does not mention pigment risk for your skin tone and healing history.
Reading the scar is not a step a patient is expected to complete alone. It is what an assessment does, and a rough version beforehand turns the appointment from a presentation into a conversation. Arrive able to say which pattern you think you have, and what you would want left alone.
Frequently asked questions
How do I tell whether my acne scars are tethered?
Look at the scars with the skin relaxed, then again while you smile or gently pull the skin sideways. Scars that stay where they are and read as pits are depressed. Scars that pull inward and follow the movement are tethered, because a fibrous band is holding them down. That difference usually decides which option suits you.
Does the severity of my scarring decide which treatment I need?
No. Severity describes how much scarring there is, not what kind. Two areas that look equally marked can differ completely in whether they are tethered, how deep a tether runs and how the skin will heal afterwards. Scar type, skin tone and healing history decide the plan; how marked the skin looks decides only how much there is to treat.
Can redness after acne be treated in the same way as pitted scars?
Not in the same way. Persistent redness is a change in colour and it fades on its own calendar in many people, while pitted scars are structural. A plan aimed only at texture can leave the colour as it was, and a plan aimed only at colour can leave the texture. When both are present, which is treated first is a clinical judgement.
Risks & Limitations
- Neither fractional laser nor microneedling removes a scar. Both change how it looks.
- Pigment change is a real risk of both options, and it can be harder to treat than the scar was.
- A result is judged weeks to months after a session, not in the days that follow.
- Scars are permanent, and new acne can produce new ones at any time.
When to Seek Care
- Fever with spreading redness, warmth or discharge from a treated area.
- Severe or increasing pain, blistering, or skin turning pale, dusky or mottled.
- Any change in vision, or a cold sore outbreak spreading across the treated area.
- Skin that is worsening rather than settling between sessions.
References & Further Reading
- American Society of Plastic Surgeons (ASPS) — procedural and safety guidance
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
- Cochrane Library — systematic reviews of acne scar treatment
- Chinese Medical Association Plastic Surgery Branch — clinical guidance
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.