Nasolabial-angle correction vs ‘cat surgery’ — how they differ and when to consider it
2026. 4. 7.
The nasolabial angle’s (angle the columella and upper lip make) influence on profile impression, its natural range (women ~95–105°, men ~90–95°), relationship to ‘cat surgery,’ and when nasolabial-angle correction gets considered — organized.
Key points
- The nasolabial angle is the angle the columella and upper lip make — the natural-looking range is about 95–105° for women, 90–95° for men.
- Cat surgery is closer to a description of the image change appearing during nasolabial-angle adjustment than a separate surgery.
- If a droopy-looking tip or protrusive-looking mouth is the concern, angle balance can be checked before nose height.
Some come for consultation after deliberating over the mouth looking protrusive or the tip looking slightly droopy in profile. In such cases it can relate to the direction the tip points — the nasolabial angle — rather than simply a nose-height problem. Among those considering nasolabial-angle correction (cat surgery), many want the overall impression to tidy naturally more than a big nose change.
This article organizes — centering on criteria — what the nasolabial angle is, how to understand it versus cat surgery, and in which cases nasolabial-angle correction gets considered.
01
What is the nasolabial angle?
The nasolabial angle is the angle the columella and upper lip make — an element affecting the mood seen in profile. If balance is off, the nose can look droopy or upturned. The generally natural-looking range is as follows.
- When the angle is small — a droopy tip feel, a long-looking philtrum feel, a protrusive-mouth impression
- When the angle is large — an upturned tip feel, an impression emphasizing the nostrils
| Category | Natural-looking nasolabial-angle range |
|---|---|
| Women | About 95–105° |
| Men | About 90–95° |
The impression’s characteristics also differ by nasolabial angle.
An element checked together is the columella–alar position relationship. Generally when the columella sits about 1–2mm below the ala, the tip contour looks distinct — if this balance is off, the nose can look spread or long.
02
Are cat surgery and nasolabial-angle correction different surgeries?
Rather than completely different surgeries, the change appearing during nasolabial-angle adjustment is often described as cat surgery. With a small nasolabial angle, the tip points downward and the side line can look stuffy — but if the tip direction gets adjusted slightly upward, a feel where the line running nose-to-mouth connects more naturally can appear.
In other words, understanding nasolabial-angle correction as adjusting the tip angle and cat surgery as the image change shown by that angle change helps. For example, changes like the following can be felt.
- A feel of the side line continuing smoothly
- An impression of the mouth looking less protrusive
- A feel of a tidied tip
- Overall softening of a previously stuffy-looking mood
In the past there were cases using an implant alongside when describing cat surgery — but recently there are also cases proceeding by adjusting the nasolabial angle using the existing cartilage structure without inserting an implant. KOWON too performs implant-free nasolabial-angle correction in this direction. Angle adjustment and tip-line design can be seen in more detail in the J-curl procedure guide.
03
In which cases is nasolabial-angle correction considered?
Nasolabial-angle correction is a process organizing the side-line flow by adjusting the direction the tip points and the angle continuing to the lip. With a small nasolabial angle, the tip pointing downward can make the philtrum look long or emphasize a protrusive-mouth feel. Rather than changing the angle greatly, finding a range connecting naturally within facial proportion matters.
Nasolabial-angle correction gets considered together in cases like the following.
- Cases where the philtrum angle running nose-to-mouth looks bent
- Cases where the tip feels droopy even though the nose wasn’t raised
- Cases where a refined feel is lacking even after raising the bridge
- Cases where a protrusive-looking mouth is the concern
There are also people who thought the front view was fine but began deliberating consultation after seeing profile photos. The nose’s apparent mood can differ by angle, not only height.
04
Summary — check angle balance before height
The nasolabial angle is a small angle difference yet an element that can affect the side-line mood. If nose height changed yet differed from the expected feel, angle balance can be checked together. If the front was fine but the profile kept bothering, please first confirm which direction is natural in the current nose structure.
If curious where your nasolabial angle sits in profile, it can be confirmed directly in a 1:1 video consultation.
Frequently asked questions
Answers to common questions patients ask before a consultation.
Can just the nasolabial angle be corrected without nose surgery?
Won’t the nose end up excessively upturned?
Does it revert over time after nasolabial-angle correction?
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.