In short. Lines that show only on movement, an acceptable normal change, or a patient whose real concern is something else. The cases where the honest answer is to do nothing.

Key points

  • Before deciding anything, spend two weeks on the boring steps: a plain protective balm, no licking or picking, and protection on the lip border daily.
  • Photograph your mouth in the same light at the start and the end.
  • Lines that are dryness will have softened.

This site exists to explain options, and part of that is saying when none of them should be used. There are four situations in which the honest answer to a question about lip lines is to do nothing.

Lines that appear only on movement

A mouth that creases when it purses, speaks or smiles is behaving normally. Nothing about a movement line requires treatment, and the only thing available addresses the muscle for a period and needs repeating. Leaving it alone is a legitimate choice rather than neglect.

A change that is normal for the person's age

Perioral lines appear in everyone, and the range at a given age is wide. A mouth doing what a mouth does at that age is not a problem to be solved.

A fortnight worth running first

Before deciding anything, spend two weeks on the boring steps: a plain protective balm, no licking or picking, and protection on the lip border daily. Photograph your mouth in the same light at the start and the end. Lines that are dryness will have softened. Lines that are structural will not have, and knowing which you are looking at changes the whole decision.

An expectation that no option meets

Some people want the lines gone rather than softened, a border restored to what it was, or a result that holds without any repetition. None of those exists in any form. A clinician who recognises the expectation and says so is being honest.

A concern that is really about something else

Lip lines is often the phrase used for something harder to name: a thin upper lip, corners that have turned down, or a mouth that looks smaller than it used to. Those are different questions with different answers, and treating the lines will not address any of them.

What doing nothing actually means

It does not mean neglecting the mouth. Protection on the lip border, not licking or picking, and treating dryness are worth doing on their own account and cost very little. What doing nothing means is declining the in-clinic rungs, which is a legitimate choice.

When the answer changes

The answer changes if a sore appears that does not heal, if a change is confined to one side, if there is numbness, if the lip becomes swollen and stays swollen, or if the concern has become specific enough to describe in one sentence. Until one of those happens, watching is a plan.

Do not watch these

  • A sore, ulcer or crust that has not healed within a few weeks, or that bleeds or recurs.
  • A one-sided change, or numbness or altered sensation in the lip or chin.
  • Sudden deep fissuring with swelling, or a lip that has become and stayed swollen.

The questions worth asking at a consultation are set out in How Perioral Lines Are Assessed. The findings that route a lip change to a doctor are listed in When a Lip Change Is Medical.

Related reading

Frequently asked questions

Is it wrong to want treatment for lines that are normal for my age?

Not at all, and this site is not arguing against treating anything. It is arguing that the decision should be made knowingly: lines normal for your age will not be removed, treatment addresses one contributor at most, and the result is held rather than fixed. Someone who knows that and still wants it is making a reasonable choice.

What if I am only having this done because someone told me to?

That is worth pausing over. A partner, a friend or a clinician may have suggested lip treatment for their own reasons, and the question is whether the concern is yours. If you look at your mouth and are content with it, nothing needs doing, and no examination is required to confirm that. Pressure is not a clinical indication.

What if my real concern is my lip shape rather than lines?

That is common and worth saying out loud. Many people who ask about lip lines are actually concerned about a thin upper lip, an asymmetric mouth, or corners that turn down, and each of those is a different question with a different answer. Naming the real concern is what allows a clinician to say whether anything on this ladder is relevant.

Risks & Limitations

  • Perioral lines have several contributors and none of the options erases them. Relaxing the muscle reduces movement, adding volume changes how the mouth folds, and resurfacing softens what is set in the skin. All of it needs maintaining.
  • The lip border is a high-movement area with thin tissue and very little padding beneath it, so material placed there behaves differently from elsewhere in the face and the result depends on technique and on experience rather than on volume.
  • Injectables carry risks that depend on the area treated and on the person placing them, including asymmetry, nodules and, rarely, vascular problems. Resurfacing carries downtime and a risk of pigment change that is greater in deeper skin tones.
  • An active sore, an unhealed lesion, an infection or inflamed cracked corners are reasons to defer treatment, because injecting or resurfacing through them risks a problem being missed or made worse.

When to Seek Care

  • A sore, ulcer or crust on the lip that has not healed within a few weeks, or that bleeds or recurs — have it examined.
  • A change confined to one side of the lip, or numbness or altered sensation in the lip or chin — seek medical assessment first.
  • Sudden deep fissuring with swelling and soreness, or a lip that has become swollen and stayed swollen — seek medical assessment.
  • After any treatment: severe pain, blanching or mottled skin, a spreading dusky discolouration, or worsening swelling — seek urgent care.

References & Further Reading

  • American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
  • National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
  • Cochrane Library — systematic reviews
  • Chinese Medical Association Plastic Surgery Branch — clinical guidance

Medically reviewed by Tongchun Mao, MD (毛彤春), Deputy Director & Head of Aesthetic Surgery. Last reviewed: 19 September 2026.

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.