Thick Lip Reduction: Rebalancing Upper and Lower Lip Proportions

📅 Updated 26/03/2026·🏷️ Skin & Rejuvenation·✍️ Editorial team — Dr. Vo Thanh Sang

Do you feel that your lips are too full for your face, that your upper and lower lips are out of balance, or that you show a lot of gum every time you smile, which makes you self-conscious? This is a very real concern for many people, and thick lip reduction is one of the solutions often considered to help the lip contours sit more harmoniously with the face as a whole. This article will walk you through an honest look at the technique, the recovery process, and the things worth weighing before you decide.

Why do many people want thick lip reduction?

Lip thickness is largely determined by the structure of the mucosa and the orbicularis oris muscle tissue, and it is congenital. When this proportion goes beyond what is balanced for the face, the lips can look heavy, less refined, or may obscure the natural lip border.

Some situations that commonly lead people to consider an intervention include:

An upper or lower lip that is too thick, disrupting the proportion typically seen between the upper and lower lips.
A pronounced gummy smile, partly due to a thick upper lip combined with overactive lip-elevator muscles.
The two lips being out of proportion with each other, making the smile look less harmonious.
A desire for tidier, more clearly defined lip contours when wearing makeup.

It is important to understand that "ideal" lip proportions are relative and depend on each individual face. The goal of surgery is not to recreate someone else's lip shape, but to restore a natural balance that suits you.

How is the thick lip reduction technique performed?

The core principle of thick lip reduction is to remove a portion of the mucosa and excess tissue on the inner side of the lip, then suture it closed to reduce thickness and reshape the lip border. The entire procedure is carried out inside the mouth.

Incision and scar location

The surgeon makes an incision on the inner side of the lip, right at the boundary between the wet and dry mucosa. Because of this location, the scar stays hidden inside the mouth and is not visible from the outside when speaking or smiling. This is why many people refer to it as a "hidden scar" technique.

The basic steps

Examination, measurement of lip proportions, and marking the planned amount of tissue to be removed.
Local anesthesia so that the lip area is free of pain during the procedure.
Removal of the strip of mucosa and excess tissue according to the amount calculated for each lip.
Aesthetic closure with absorbable sutures, reshaping the thickness and curve of the lips.

For someone who has both thick lips and a gummy smile, the surgeon may also assess factors such as upper lip height, lip-elevator muscle activity, and the condition of the gums in order to advise an appropriate approach. Not every case of gum exposure can be resolved by lip reduction alone; sometimes a combination of other methods is needed, and this must be based on a direct examination.

The recovery process after thick lip reduction

Because the intervention involves the soft tissue of the lip area, recovery is usually relatively quick, but the pace and degree of swelling depend on each person's individual constitution. The following timeline is for reference only:

First 1-3 days: The lips are swollen, may feel tight, and speaking and eating may be somewhat difficult. This is a normal reaction.
Around 1 week: The swelling gradually subsides and the absorbable sutures begin to fall away. Eating and talking become more comfortable.
2-4 weeks: The lip shape becomes more stable, although the final result needs more time for the soft tissue to settle.
After a few months: The lip contours gradually become soft and natural, and the scar inside the mouth heals and stabilizes.

A few care notes that help the healing process go more smoothly:

Clean the mouth gently and rinse according to your surgeon's instructions.
Favor soft, cool foods in the first few days; avoid food that is too hot, spicy, or hard.
Apply cold compresses as directed to help reduce swelling.
Limit broad smiling and vigorous lip movement in the early stage.
Take medications and attend follow-up visits on schedule.

If unusual signs appear, such as prolonged bleeding, increasing swelling and pain, fever, or an opening of the sutured wound, you should contact your surgeon right away for timely assessment.

Medical notes: contraindications, risks, and complications

Thick lip reduction is a surgical intervention, and even though it is not highly invasive, certain risks still exist. Understanding the honest information below will help you make a clear-headed decision.

Cases that call for caution or postponement

An active infection of the mouth or lips, or acute dental conditions.
Bleeding disorders, or current use of anticoagulant medication that has not been adjusted by a physician.
Underlying conditions that are not well controlled, such as diabetes, cardiovascular disease, or high blood pressure.
Women who are pregnant or breastfeeding.
Unrealistic expectations or psychological readiness that is not yet in place for surgery.

Possible risks and complications

Swelling and bruising lasting longer than expected in some individuals.
Infection of the sutured wound if care and hygiene are not carried out properly.
The two lips not being perfectly balanced, requiring monitoring or later revision.
Temporary numbness or altered sensation in the lips due to effects on small nerve endings.
Thick or contracted internal scarring in people prone to abnormal scarring.
An outcome where too little or too much tissue is removed, affecting the desired thickness.

No method can guarantee an absolute result for everyone. The final degree of harmony depends on your individual constitution, how your body heals, and your own cooperation with aftercare. To limit risk, the procedure should be performed by a specialist surgeon, in a licensed medical facility with fully sterile conditions, and should not be carried out at spas that are not authorized to perform surgery.

Why see a specialist surgeon for examination?

Each pair of lips has a different mucosal structure, thickness, and relationship to the face, so a single formula cannot be applied to everyone. A specialist in aesthetic plastic surgery will make an overall assessment, measure the proportions, and advise on the amount of tissue to be adjusted based on your individual characteristics.

A direct examination also helps to:

Identify the true cause of the thick lips and any accompanying gummy smile.
Rule out contraindications and assess your underlying health status.
Discuss your expectations clearly, the results that can realistically be achieved, and the limitations.
Build an appropriate plan for care and postoperative monitoring.

As for cost, the investment for thick lip reduction depends on each person's specific condition and treatment plan, so you should discuss it directly during the consultation to receive transparent information rather than relying on a general figure.

Closing thoughts and an invitation to visit

Thick lip reduction is a reasonable option for those who wish to rebalance the proportions of the upper and lower lips and improve their smile, but it is a decision that should be carefully weighed on a medical basis and through a personalized examination. Understanding the technique, the recovery process, and the risks correctly will help you feel more at ease on your own journey.

If you are wondering whether this method is right for you, please book an examination with Dr. Vo Thanh Sang (Specialist Level I) for a direct assessment and attentive consultation. Contact the hotline 079 7479 222 for thoughtful support and answers to your questions.