To maintain the level of service, results, and care you expect, our treatment prices will be gently updated from 1st August. We’re grateful for your continued loyalty. To maintain the level of service, results, and care you expect, our treatment prices will be gently updated from 1st August. We’re grateful for your continued loyalty. To maintain the level of service, results, and care you expect, our treatment prices will be gently updated from 1st August. We’re grateful for your continued loyalty. To maintain the level of service, results, and care you expect, our treatment prices will be gently updated from 1st August. We’re grateful for your continued loyalty.

Lip Asymmetry: What It Is, Causes & How to Fix Uneven Lips

Written by an Expert Aesthetic Content Writer Lisa.
Reviewed by Expert Medical Director Dr. Raj Thethi
Published on: June 10, 2025
Uneven Lips

Lip Asymmetry

Have You Ever Smiled in a Picture and Thought, “Why Do My Lips Appear Uneven?

You may have used lip liner hacks to try to balance out the sides, or stayed far, far away from selfies. Lip asymmetry, also known as uneven lips, is something many individuals have lived with for years without ever realising there was a term for it.

However, if it bothers you, we have some good news! There are safe and simple ways to fix your asymmetrical lips.

In this blog, let’s explore uneven lips and their fixes to restore the balance and lift your confidence.

What Is Lip Asymmetry?

Lip asymmetry means your lips aren’t the same on both sides. This could mean:

  • One corner of the mouth is higher than the other.
  • The top or bottom lip is thicker on one side.
  • The lips don’t close evenly.
  • A crooked look when smiling or speaking.

Here’s something to keep in mind: small unevennesses are normal. No one has a perfectly even face. But if your uneven lips are noticeable or make you uncomfortable, you may want to explore treatment.

See How Dr. Raj Corrected Lip Asymmetry with Lip Filler

lip asymmetry correction result ysc

Book your  consultation today 

What Causes Uneven Lips?

Let’s look at the most popular reasons for lip asymmetry and how each of them may influence your face:

  • You Were Born That Way (Genetics)

For some, lip asymmetry is merely the result of how their face developed. This is the most natural and harmless explanation, just like some folks have unequal-sized ears or eyebrows.

  • Injury or Scarring

If you’ve ever had stitches near your mouth, a sports injury, or even a burn, it can change the shape of the soft tissue in your lips.

  • Jaw or Dental Problems

An offset jaw or misaligned teeth will push the lips out of kilter. Missing teeth or having dentures will even alter how your natural lip position looks.

  • Ageing and Volume Loss

With increasing age, lips lose fat and collagen. This might make one half of the mouth appear more flattened or more “sunken in,” giving prominent lip asymmetry.

  • Muscle Movement (Facial Dominance)

We all move our facial muscles differently—some smile more to one side or chew on one side. Over time, this gradually alters the shape of your lips and how they move. 

  • Nerve Damage or Facial Conditions

Less often, conditions such as Bell’s palsy, stroke, or nerve damage can produce facial drooping and asymmetrical lips. In these instances, medical intervention may be necessary prior to cosmetic solutions.

How to Fix Uneven Lips? 

Lip Fillers

Lip fillers are one of the best ways to fix asymmetrical lips.  It employs hyaluronic acid (a natural compound already present in your skin) to fill and reshape the lips softly.

How Lip Fillers Help Fix Asymmetry?

  • A trained professional examines your lip shape.
  • Filler is only injected where there is a need for more volume.
  • The aim is to equalise both sides, not to make them “large”.
  • Results are immediate, natural-looking, and last 6–12 months

Lip Filler before and after

It’s helpful to know that lip fillers are reversible! If you don’t like the outcome, they can be dissolved safely. Moreover, check out the lip filler cost in UK if you are considering getting this treatment.

Other Options to Fix Lips’ Asymmetry

Apart from lip fillers, here are some other options to address uneven lips. They include:

  • Muscle Relaxant Injection for Lip Movement Problem

Botox relaxes the hyperactive muscle of your lip on one side and pulls up higher when you smile or speak. It’s a tiny dose that only lasts temporarily (3–4 months), but it can cause your lips to appear more balanced in motion.

  • Consult a Dentist or Orthodontist

Should your lip unevenness be related to the positioning of your jaw or teeth, a dental checkup may provide relief. Getting braces, an aligner like Invisalign, or bite correction can affect how your lips align.

  • Minor Surgery or Lip Lift

A small surgical lift may be suggested in extremely rare or bad cases, particularly when one lip is significantly lower than the other. It is permanent but needs more time to recover.

Can Makeup Correct Uneven Lips?

Yes, maybe! If you are not yet ready for a muscle relaxant injection or filler, wonderful makeup tips can help make them even:

  • Apply a lip liner to slightly overline the smaller lip.
  • Select matte lipsticks to create a more even appearance for lips.
  • Add a hint of highlighter to the Cupid’s bow to attract attention.
  • Steer clear of shiny glosses if you wish to conceal asymmetry.

Consult an Expert Practitioner

If you look at lip filler for uneven lips or other options, selecting a trained, experienced practitioner is the most important thing. Consider:

  • Medical qualifications (nurse, doctor, dentist).
  • Good reviews or recommendations.
  • A natural aesthetic style—ask to view before/after photos.
  • Someone who listens to your objectives.
  • Don’t hesitate to ask questions. 

A good practitioner will describe your choices clearly and won’t pressure you into treatment you don’t require.

Final Thoughts: There’s Nothing “Wrong” with Your Lips

Lip asymmetry is not a defect-it’s one of the things that makes your face special. But if it’s impacting your self-confidence, it’s okay to want to change. Contemporary aesthetic treatments, such as lip filler in Leeds, are safe, fast, and customised to you.

From lip augmentation for asymmetrical lips to easy makeup tips or Botox for movement, everyone has a solution-no more hiding your smile.

looking for Lip filler in leeds? Book a consultation with Dr. Raj Thethi at Yorkshire Skin Centre for natural, balanced results.

Schedule your appointment today!

FAQs

1. Is it OK to have asymmetrical lips?

Yes, it’s normal. Most people have slight, harmless lip differences. However, if you want even lips, various treatment options like fillers, muscle relaxant injections, and minor surgery are available.

2. Why is my top lip bigger than my bottom lip?

It’s often genetic. Ageing or past lip treatments can also affect lip size.

3. Why is my lip bigger on one side?

It may be due to injury, dental issues, or natural muscle imbalance. A doctor should check for sudden changes.

4. Can lip asymmetry be corrected?

Yes. Options include lip fillers, Botox, dental treatment, or minor surgery, depending on the cause.

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About Dr. Raj Thethi - Medical Reviewer

Dr. Raj Thethi

Yorkshire Skin Centre in Leeds is a CQC-registered medical clinic. It is led by Dr Raj Thethi who completed his core surgical training in hospitals around West Yorkshire before branching into aesthetics. Dr Raj Thethi is a Northern Territory Regional Expert for an international dermal filler company called Teoxane. He also sits on their National UK Faculty.

View all posts by Dr. Raj Thethi

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Blepharoplasty

Blepharoplasty, also known as an eye lift, is a surgical procedure performed on the eyelids to improve their appearance. It can address concerns like:

  • Excess skin on the upper eyelids: This can obstruct vision and create a hooded appearance.

  • Bags under the lower eyelids: These can make you look tired or aged.

  • Drooping lower eyelids: This can also obstruct vision and contribute to a tired appearance.


Types of Blepharoplasty:

  • Upper blepharoplasty: This addresses concerns with the upper eyelids, removing excess skin and sometimes fat or muscle tissue.

  • Lower blepharoplasty: This addresses concerns with the lower eyelids, removing excess fat or skin and sometimes repositioning tissues.

  • Asian blepharoplasty: This addresses specific concerns related to the anatomy of Asian eyelids, creating a more defined crease.