When Should You Do Something About Acne Scars?
When should you do something about acne scars? Once your acne has settled, once you have established the marks are true scars rather than fading discolouration, and once the scars have matured. Before those three points, acting early tends to work against you. After them, the timing is largely your decision.
One exception overrides all of that: a raised scar that is growing is a medical matter, not a cosmetic one, and it should not wait.
On this page: The three gates · Is the acne settled? · Is it actually a scar? · Has it matured? · The exception · When it becomes your decision · The UK picture · What to ask your doctor · FAQs
When should you do something about acne scars? Three gates first
Most advice treats this as a single yes or no. It is closer to three gates in sequence, and the answer at each is either “not yet” or “move on”.
| Gate | Question | If the answer is no |
|---|---|---|
| One | Has your acne settled? | Not yet. New inflamed spots mean new scarring risk, so acne comes first |
| Two | Is this a true scar rather than a flat mark? | Wait. Flat post-inflammatory marks usually fade over months |
| Three | Has the scar matured? | Wait. Scars keep changing after they form, particularly raised ones |
Clear all three and the decision stops being clinical and becomes personal. That shift is what most articles miss.
Gate one: has your acne settled?
This is the gate people most often skip, and skipping it is the costliest mistake.
NICE guideline NG198 states that the risk of scarring increases with the severity and duration of acne. While acne remains inflamed, every new lesion carries its own scarring risk. Addressing existing scars while new ones form means working on a moving target.
There is broad agreement among dermatologists that active acne should be controlled before scar-focused treatment. Worth being straight about the evidence: no UK guideline sets a specific waiting period, and the figures quoted online come from clinical practice rather than trial data. The principle is well established; the number of months is not.
That makes the first question about acne rather than scars. If you are still getting inflamed spots, the guide to when to do something about acne is the more useful starting point.
Gate two: is it actually a scar, or a mark that will fade?
A large share of people asking about acne scars are looking at post-inflammatory marks, which behave differently.
Post-inflammatory hyperpigmentation is the flat brown patch left after inflammation settles. Post-inflammatory erythema is the red or purple version. Neither involves lost or added tissue, so the skin can resolve them, and they usually fade over months.
True scars mean the skin’s structure has changed. Atrophic scars are indented. Hypertrophic and keloid scars are raised.
The practical test is light. Flat marks stay flat under angled light. True scars catch the light or cast a shadow, because the surface is uneven. If you cannot tell, have a GP or pharmacist look rather than guessing.
Getting this wrong means spending on something that would have resolved by itself. Getting it right tells you whether you are on a waiting timeline or a deciding one.
Gate three: has the scar finished changing?
Scars are not static from the moment they form. They remodel afterwards, and raised scars follow a curve.
NHS patient information from Royal Free London states hypertrophic scars may continue to thicken for up to six months, and usually improve within 12 to 24 months. A raised scar assessed at month three is being judged mid-curve, before it has done what it will do.
Indented scars are more stable, but the surrounding skin still settles in the months after acne clears, and redness fades on its own timeline.
The point is not a fixed waiting period. It is that judging a scar too early means judging something still moving.
The one situation where waiting has a cost
Everything above assumes an indented scar or flat mark. Keloid scars are the exception.
The same NHS guidance states that keloid scars can grow beyond the boundary of the original wound, may be painful and cause itching, and that their appearance may not improve over time. Unlike hypertrophic scars, keloids do not reliably settle.
The same guidance notes anybody can develop a keloid scar, though young people and those with darker skin are more prone, particularly on the ears, chest, shoulders and back.
If you have a raised acne scar spreading beyond where the spot was, or that is painful or itchy, book a GP appointment rather than working through the gates. NHS trusts treat keloid and hypertrophic scars medically rather than cosmetically.
Once the gates are cleared, it becomes your decision
Here is what almost no page on acne scar timing says plainly: for indented scarring, there is usually no medical deadline.
Indented scars are structurally stable and do not deepen on their own. Once your acne has settled and the scars have matured, waiting another year carries no clinical penalty. The question changes from “should I” to “do I want to, and when”. The urgency people feel about acne scars is largely manufactured, because no window is closing.
One thing is worth naming honestly: distress is a legitimate reason to act on its own. NICE states acne of any severity can cause psychological distress and mental health disorders, and lists persistent psychological distress and persistent pigmentary changes among its criteria for considering referral to a consultant dermatologist-led team. If scarring is affecting how you live, that is a reason to raise it rather than to feel vain.
Acne scars and the UK system
Three features of the UK setup shape when acting is realistic, not just when it is advisable.
- Most scar treatment is not NHS-funded. Procedures for established indented scarring are generally classed as cosmetic and are not routinely commissioned. Criteria vary between integrated care boards, so what is available depends on where you live. Ask your GP what your local policy says rather than assuming.
- Raised and keloid scars are treated differently. NHS trusts including Royal Free London describe medical treatment for keloid and hypertrophic scars, which puts these on a different footing from indented scarring.
- Insurance rarely helps. Many UK private medical insurance policies exclude both cosmetic procedures and chronic or pre-existing conditions, and acne scarring often falls under one or both. Read the wording before assuming.
Because most indented scar treatment is self-funded in the UK, timing is partly a personal and financial decision rather than a purely clinical one. That is an argument for taking your time, not rushing. For detail on self-funded options and what each involves, that sits on Revitalize in Turkey rather than here.
The acne scars concern page covers scar types and causes, and the guide to whether acne scars get worse if left untreated explains what does and does not change over time.
What to ask your doctor
Worth asking a GMC-registered doctor:
- Is my acne settled enough that scarring is now the main issue?
- Which of these marks are true scars, and which are likely to fade on their own?
- Are any of these scars still changing, or have they matured?
- Is there anything here that is a clinical concern rather than a cosmetic one?
- Does my local integrated care board fund anything for this type of scarring?
- If I decide to wait a year, does that cost me anything clinically?
Frequently asked questions
How long should you wait after acne clears before treating scars?
There is no UK guideline setting a specific period, and the figures circulating online come from clinical practice rather than trial evidence. The principle is that acne should be under control first, because new inflamed spots create new scarring risk. Ask a GMC-registered doctor about your own timing rather than following a fixed number.
Is it too late to treat acne scars from years ago?
Not in the sense of a window closing. Indented scars are structurally stable and do not deepen on their own, so an old scar is not fundamentally different from a recent one. Older scars may respond differently to intervention, which is a question for whoever would carry out the treatment rather than a reason for urgency.
Should I treat acne scars while I still have acne?
Generally not. NICE links scarring risk to acne severity and duration, so while acne remains inflamed, new scars can form while existing ones are being addressed. Dermatological practice favours controlling acne first. Some supportive skincare can continue alongside, but that is a decision for a clinician who has seen your skin.
When is acne scarring a medical rather than cosmetic issue?
When a raised scar is growing beyond the original spot, is painful or itchy, or when scarring is causing persistent psychological distress. NICE lists scarring, persistent pigmentary changes and persistent distress among its criteria for considering dermatology referral. Indented scarring alone is usually treated as cosmetic in NHS commissioning terms.
Do acne scars need treating urgently?
Indented scars, generally no. They are structurally stable, so there is no clinical deadline. Keloid scars are the exception, since NHS information states they can keep growing and may not improve over time. Any raised scar that is spreading, painful or itchy warrants a GP appointment rather than watchful waiting.
Can I tell the difference between a scar and a mark myself?
Often, using angled light. Flat marks stay flat under it; true scars catch the light or cast a shadow because the surface is uneven. The distinction is not always obvious, particularly early on or in deeper skin tones, and a GP or pharmacist looking at your skin will give a more reliable answer than a photograph.
