My nose spreads and becomes an arrow nose only when smiling — when muscle control surgery is considered
2025. 12. 18.
Why the tip droops and looks spread only when smiling — the action of the depressor septi muscle below the columella, a muscle-control approach through the inside of the nose that keeps the usual nose shape, plus an implant-free correction case with bulbous·crooked nose — organized based on a Q&A answer.

Key points
- If the tip gets pulled downward and looks spread the moment you smile, the cause may be the action of the depressor septi muscle (tip depressor) below the columella.
- Place a finger under the nose and smile — you can confirm the movement of the tip pushing the finger down yourself.
- If you want to keep the usual nose shape while reducing only the spreading when smiling, an approach through the inside of the nose that modulates the muscle's action without scar exposure can be considered — the exact method is decided after checking both the resting and smiling look together.
"I don't want bridge-augmenting surgery, and I dislike the impression changing greatly. But I'd like to improve just the excessive spreading of my nose when I smile."
This is a question answered by Dr. Hyung-taek Kim of KOWON Plastic Surgery on Q&A. The asker had a low bridge and a blunt tip, and said the already wide-looking nose spreads more severely when smiling, making big smiles uncomfortable — and they often hear the spreading stands out more in group photos taken from far away. This article organizes, based on that answer, the cause of nasal spreading when smiling and the direction of improvement.
01
What causes the nose to spread when smiling?
Comparing photos at rest and while smiling, you can feel a change where the tip gets pulled downward and spreads the moment you smile. Actually, if you place a finger under your nose and smile, you can confirm the tip's movement pushing the finger down.
This is a phenomenon appearing because the tip-depressing muscle below the columella — the depressor septi muscle acts when smiling and pulls the tip downward. This muscle's action makes the nose look wider and spread when smiling.
02
Can you keep the usual shape while reducing only the spreading when smiling?
If your concern is the nose spreading excessively only when smiling, a method that modulates that muscle's action can help.
| Checkpoint | Content |
|---|---|
| Approach | Through the inside of the nose — can proceed without scar exposure |
| Purpose | Reducing the spreading when smiling without greatly changing the current nose shape |
| How it's decided | Method decided after checking the smiling and resting nose shape together |
So if you want to keep the usual nose form while relieving the spreading that appears only when smiling, a method centered on muscle control among spread-nose surgeries may be suitable. What gets checked in tip correction can be seen further in the nasal tip guide.
03
Summary — resting and smiling must be viewed together
If the nose spreads only when smiling, the cause may lie not in the nose's structure alone but in muscles that act when making expressions. So the surgical method is best decided not from a still look alone but after checking the smiling and resting nose shape together. The approach differs depending on whether you want to keep the usual shape, and whether spreading and crookedness coexist.
If curious how your nose changes when you smile, you can get checked directly in a 1:1 video consultation.









Frequently asked questions
Answers to common questions patients ask before a consultation.
Is there a way to self-check whether the nose spreads when smiling?
Does muscle control surgery leave a scar?
If the nostrils are spread, must they always be cut?
Responses to treatment and recovery progress vary by individual. Outcomes and side effects vary from person to person. Bleeding, infection, swelling and asymmetry may occur. Please consult our medical team before making a decision.