Acne Scars: Types and the Treatments That May Help

Not every mark acne leaves is a scar. Flat red, brown or dark patches are usually post-inflammatory marks, and many fade over months once the acne is controlled. True acne scars change the texture of the skin, as pits, depressions or raised bumps; treatment can make them less noticeable but rarely erases them, and on Indian skin the choice of treatment also depends on how easily the skin darkens after injury.

This article explains how to tell marks from scars, the main scar types, why active acne comes first, the treatments that may be discussed and what realistic improvement looks like. It is general patient education, not a list of procedures offered at any particular clinic.

Marks or scars? The first thing to work out

When an inflamed spot heals, it often leaves a flat patch of colour. On brown skin this is usually a darker brown or grey-brown mark, called post-inflammatory hyperpigmentation. On lighter skin it is more often red or pink, called post-inflammatory erythema. The American Academy of Dermatology (AAD) notes that a flat spot of colour left when acne clears is usually not a scar.

These marks fade on their own, but slowly; DermNet notes that it can take months or longer. Sun exposure darkens them and slows the fading, and so does picking at spots. Daily sunscreen, keeping new acne under control and, where suitable, a prescription pigment-reducing cream are usually enough. Procedures are rarely needed for flat marks.

A scar is different, because the surface of the skin has changed. A simple check is to look at the area in side-on light, such as a window to one side of a mirror: a mark is flat and only changes colour, while a scar casts a small shadow as a pit or a bump. Many people have both, and the marks often make the scars look worse than they are.

The main types of acne scar

Most acne scars are depressed (atrophic), because the inflammation destroyed some of the collagen beneath the spot. A smaller number are raised. The type matters, because each responds to different treatments, and most people have a mix. DermNet's reference page on acne scarring describes them in more detail.

Keloids and darker marks are both more common in brown and black skin, according to DermNet, which is part of why scar treatment on Indian skin is planned conservatively.

Why active acne is controlled first

Every new inflamed spot can leave a new mark or scar, and DermNet notes that timely treatment during the active phase reduces how often, and how badly, acne scars. Deep, painful spots and lumps carry the highest risk, as does picking.

There are practical reasons too. Many scar procedures injure the skin in a controlled way, and doing that on inflamed skin raises the risk of infection, flares and darker patches. Some acne medicines also affect timing: taking an oral retinoid, for example, is a reason to discuss with the doctor when any procedure can be done. So the usual order is:

1. Control active acne with prescription creams, and tablets where acne is moderate, severe or scarring.
2. Let marks settle with daily sunscreen and time, with a pigment-reducing cream where suitable.
3. Assess what scarring remains, and only then discuss scar treatment.

In adult women, acne along the jaw with irregular periods or new facial hair can point to a hormonal cause such as PCOS, which changes the acne plan; how PCOS drives facial hair, and why its cause is treated medically explains the link.

Treatments that may be discussed

Scar treatment usually combines methods over several sessions, chosen by scar type and skin type. What follows is a general overview; the method, the settings and the number of sessions are decided after an examination.

Microneedling

Fine needles make many tiny, controlled channels in the skin, which prompts it to lay down new collagen. It is most often used for rolling and shallow boxcar scars, over several sessions spaced weeks apart. Reviews describe a relatively low risk of darker patches compared with many lasers, which is why it is often considered for darker skin, though overly aggressive treatment can leave marks of its own. Platelet-rich plasma (PRP) is sometimes applied after microneedling. Small, mostly split-face studies suggest it may add some benefit, but reviews rate the certainty of that evidence as low; what face PRP is used for, and what it does not do is explained separately.

Chemical peels

Peels remove the outer layers of skin to different depths. Superficial peels mainly help marks and very shallow scarring. For ice-pick scars, a high-strength acid can be applied precisely into each scar over several sessions, a technique called TCA CROSS, to build up its base. Deeper peels carry a higher risk of darker or lighter patches on brown skin.

Subcision

Rolling scars are often held down by fibrous bands under the skin. In subcision, a needle is passed beneath the scar to release these bands so that the skin can lift. Bruising and swelling for a few days are usual, and it is often combined with other treatments.

Lasers

Fractional lasers treat the skin in a grid of tiny columns, leaving untreated skin between them to speed healing. Ablative fractional lasers remove tissue and can give more change per session, with more downtime and a higher risk of pigment change. Non-ablative fractional lasers heat the skin without removing it; they are gentler and generally preferred on darker skin because the risk of pigment change is lower, but they need more sessions. On brown skin, the risk of darker patches depends heavily on the settings.

Other options

Deep ice-pick or boxcar scars may be cut out or lifted with small punch techniques, and fillers can raise some depressed scars for a time. Raised scars are treated differently: steroid injections, silicone gel or sheets and other measures can flatten hypertrophic scars and keloids, though keloids often return.

The DenceSpot skin pages describe active acne being controlled first, with an in-clinic procedure discussed once it has settled, where suitable. Whether any procedure suits your skin is decided at the consultation.

The pigment risk on Indian skin

Any treatment that injures or inflames the skin can leave it darker for a while, and on brown skin this post-inflammatory hyperpigmentation is the most common problem after scar procedures. It usually fades over months, but it can outlast the benefit of a session, and for someone who already has acne marks, a procedure that darkens the skin can feel like a step backwards. Less often, skin turns lighter, and this can last.

The risk can be reduced, though not removed:

• conservative settings and gentler methods, with more sessions rather than fewer aggressive ones;
• a test area first where the skin's response is uncertain, the same principle as a laser patch test on Indian skin;
• daily sunscreen before and after treatment, and no procedure on freshly tanned skin;
• sometimes a pigment-reducing cream beforehand, as prescribed by a doctor;
• enough time between sessions for any darkening to settle.

Melasma on the same face changes the plan further, because heat and inflammation from procedures can make it flare; melasma causes and treatment explains why.

What improvement realistically looks like

The realistic goal is scars that are less noticeable in ordinary light, not skin that looks as if acne never happened. The AAD notes that acne scars rarely go away completely on their own, and DermNet describes most scars as lasting, though they can improve with treatment. In practice:

• improvement builds over several sessions and months, because new collagen forms slowly;
• rolling and shallow boxcar scars tend to respond more than deep ice-pick scars;
• most people need a combination of methods for a mix of scar types;
• the same treatment helps some people a great deal and others only modestly;
• progress is easier to judge with photographs taken in the same light and position each time than in a bathroom mirror.

Be sceptical of dramatic before-and-after photographs. Light from the front flattens texture, and the same scars can look very different with no treatment at all; how to read before-and-after photos explains the techniques, using hair as the example. Ask any clinic how many sessions are likely, what the whole course costs, and what happens if the photographs show little change.

When to see a doctor

• You have deep, painful lumps or cysts, or new spots are leaving marks or pits. Scarring acne needs prompt treatment.
• A raised scar is growing, itching or spreading beyond the original spot, which may be a keloid.
• Acne comes with irregular periods, new facial hair or thinning scalp hair.
• Acne or marks are getting worse with creams bought from a chemist, some of which contain steroids.
• After any procedure, the skin blisters, becomes increasingly painful or swollen, shows signs of infection, or darkens noticeably.
• Acne or scarring is affecting how you feel day to day.

Getting it assessed

At our clinics in Sector 39, Gurugram and Rohini, Delhi, a skin consultation with a registered medical practitioner looks at whether acne is still active, which marks are pigment and which are scars, and how readily your skin darkens. Active acne is treated first, and once it has settled, scar treatment may be discussed where suitable. Skin treatment in Gurgaon and skin treatment in Rohini explain how a consultation runs.