Square Jaw Surgery in Korea: Jaw Angle or Long-Curve Reduction?

I am Park Sang Wook, Deputy Medical Director and board-certified plastic surgeon at VG Plastic Surgery in Seoul, and a member of the Maxillofacial Contouring Surgery Research Group. Most enquiries about a square jaw and Korean jawline surgery reach me as two photos and one sentence: my face looks square, can you make the jaw smaller? This article is about that one area — the jaw angle and the line it draws to the chin.

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Park Sang Wook

Deputy Medical Director · Board-certified in Plastic Surgery

• — Board-certified plastic surgeon
• — Plastic surgery residency, Seoul St. Mary's Hospital, Catholic University of Korea
• — Former director, DA Plastic Surgery

If you are still deciding between cheekbone, jaw and chin work, start with our facial contouring Korea guide, which maps all three. Here I stay with the jaw.

What jawline surgery in Korea actually changes

The jaw has two parts that shape how your face reads. The angle is the corner below each ear. The lower border is the line that runs from that corner forward toward the chin.

When people say their face looks square or hard, they usually mean the angle. When they say the lower face looks heavy even from the side, the lower border is often part of it. Korean jawline surgery treats one or both.

What it does not decide is the chin. Making the chin narrower, shorter or longer to finish a tapered V-line is a separate set of operations — chin reduction, chin advancement or chin setback. Some faces need jaw work only, and the chin is left exactly as it is.

Angle-only or long-curve: the two ways to reduce a square jaw

Our case archive labels jaw work in two ways, and the difference is how far forward the cut runs.

Neither is the bigger or better version of the other. A long-curve cut on a face that only had prominent corners removes bone that was doing no harm. An angle-only cut on a jaw that is heavy along its whole length leaves a step where the cut ends.

Both of these men had square jaw reduction only, with no cheekbone or chin surgery. Notice that the second jaw still reads as a male jaw — we keep a defined angle rather than rounding it away. You can see this square jaw reduction case from every angle.

Who square jaw reduction suits — and when a soft jawline is not bone

Jaw reduction surgery in Korea is a reasonable answer in these situations.

• A square mandible angle that gives the face a harder impression
• A lower face that looks wide at the corners below the ears, from the front
• You can stay in Korea two weeks or more for follow-up

And I advise against it in these.

• The cause is soft tissue rather than bone. A soft jawline with no clear edge is often fat under the jaw, and then double chin and jawline liposuction is the first thing to consider
• The jawline has lost its edge because the skin has loosened. That is a lift question, covered in our Korean facelift guide
• Facial bone growth is not yet complete
• Your schedule is too short to stay through the swelling and the follow-up visits
• You have an uncontrolled systemic or bleeding disorder

The first item is the one I see most. A jawline that looks blurred in photos is not the same problem as a jaw that looks square, and cutting bone does not sharpen a line that is hidden under fat.

Surgery day and recovery after jaw reduction

Facial contouring takes 1.5–4 hours under general anesthesia; jaw-only surgery sits toward the shorter end because only one area is treated. An anesthesiologist stays with you for the whole operation. We advise one night in the clinic, and you can wash your hair from the day after surgery.

Swelling after jaw surgery sits in the lower face and the neck, which is exactly the area you are waiting to see change. The new outline usually shows only after the swelling settles, so judge the result at 3–6 months rather than in the first weeks.

Korean jawline surgery as an international patient

For Korean jawline surgery we ask international patients to stay at least 14 days. That covers the swelling peak, stitch removal at 10–14 days and the follow-up visits before you fly. You can build a day-by-day schedule on how many days to plan in Seoul.

• An interpreter in the room for consultation, the design confirmation on the morning of surgery and every follow-up visit
• One coordinator from your first message to three months after you fly home
• Three months of follow-up after you leave: photograph reviews, written answers from your surgeon and a request for more photographs from set angles when the first ones are not enough

On cost: there is no foreigner surcharge. International patients pay the same surgical fee as Korean patients, and the quote is itemised and in writing before you decide. What sets the figure is the plan itself — angle-only or long-curve, jaw alone or combined with other areas — so we quote after the consultation rather than publish one number.

This patient had a long-curve reduction only. Her chin was not operated on; the slimmer front view comes from the lower border of the jaw. More cases, filtered by jaw angle, are on our facial contouring surgery page.

What I check first before planning jaw reduction

I also ask what you want to keep. Some people want a softer jaw, not a narrow one, and men in particular often want the angle to stay visible. The plan follows that answer.

You can read my training and memberships on my surgeon profile. Your photographs are reviewed by the surgeon who would plan your operation, and at the in-person consultation in Seoul you speak with that same surgeon.

Risks of jawline surgery and how we reduce them

Bone surgery is hard to undo, so these are the points I go through with everyone considering Korean jawline surgery.

• A nerve runs through the jaw. Its position is read on CT before the cut is planned, not discovered during surgery.
• Too much bone removed cannot be put back. We plan conservatively and leave untouched what does not change the outline.
• A step where the cut ends. Choosing between angle-only and long-curve is how we avoid a visible ledge along the jaw.
• Soft tissue can look loose once bone is reduced. If the skin over the jaw slackens, the answer is a lift rather than more bone surgery.
• Swelling is heavy and slow. It peaks around days 7–14. Leaving Korea early means leaving before your follow-up visits.
• General anesthesia carries its own risk. An anesthesiologist attends the whole operation, and we do not proceed with an uncontrolled systemic or bleeding disorder.

If something looks different once you are home, the three months of remote follow-up exist for that. Send photographs, and I answer in writing.