How small can alar reduction make the nose? Examining scar progression and over-reduction risks through research

Alar reduction (nasal wing reduction) has repeatedly been reported in Before-after case studies to reduce alar flare and nostril size, but scars typically become raised around the 3-month mark and settle over a 12-month period[1]. Over-reduction can narrow the nostrils and cause breathing difficulty; correcting this requires cartilage and skin grafting, as reported in the literature[2]. In other words, although the reported outcomes are consistent, the decision of how much tissue to remove is what determines the final result.

What becomes smaller? Indicators measured in research

Three things become smaller: the protrusion of the alar base, the width of the nasal base, and the size of the nostrils. Review articles identify wide nasal base, alar protrusion, large nostrils, and asymmetry as deformities requiring alar base reduction, and categorize excision techniques into three types: an elliptical incision along the alar crease, an incision at the base of the nostril, and a combination of both methods. Excision along the alar crease is used to reduce the size and vertical length of the alar base and correct the protrusion as seen from the front[3].[3].

The magnitude of change is measured by the ratio of the nostril width to the distance between the inner corners of both eyes. In reports using a method where the incision is placed in the groove at the boundary between the nostril and cheek, with sutures placed only within the skin, this ratio showed a significant decrease.[4]In a 20-person study that divided the design into three aspects—alar flare, base width, and alar ptosis—the same ratio and nostril shape were examined before and after surgery[1]In a report using rotated alar flaps on 80 Asian patients, follow-up observation over 3 to 12 months (average 10.6 months) showed simultaneous improvement in nostril visibility, flare, and bilateral symmetry[5].

There are also reference figures for the amount of tissue to remove. In a study of 22 women with thick skin and rounded nasal tips, partial alar reduction was performed on 20 patients, with an average excision width of 3.43 mm[6]This study combined the procedure with nasal tip surgery, and it was reported that all patients were satisfied with the results at one year[6].

How does the scar progress?

The scar becomes more noticeable around 3 months and then settles down. In a study tracking scars in 20 patients using visual assessment scales and the Stony Brook Scar Evaluation Scale, keloid-like elevation was suggested at 3 months post-op, became inconspicuous at 12 months, and showed significant improvement compared to the 3-month mark[1]No infection or skin necrosis occurred[1].

The position of the incision determines scar visibility. When the incision is placed anterior to the groove between the ala and cheek, as in traditional techniques, the scar becomes more noticeable and is more likely to cause nostril deformity. A method has been proposed that places the incision precisely within the groove and sutures only within the dermis[4]It has been reported that concerns about prominent scars and unnatural appearance have driven improvements in surgical technique[5].

What happens if too much tissue is removed?

The price of over-resection is nostril narrowing and difficulty breathing. Many Asian patients desire a narrower alar base and reduced flare, but repeated surgery or excessive alar removal can shrink and deform the nostrils, potentially obstructing the airway[2]For revision, there is a report of composite skin and cartilage grafting in 9 patients combined with paranasal Implant (prosthesis) placement[2]To restore it requires transplantation, and this is why we are cautious in deciding how much to remove.

Textbooks emphasize the same direction. In methods using skin flaps of the ala, it is emphasized to reduce the size of the nostrils and decrease protrusion while maintaining natural alar contours and avoiding over-resection.[7]In people with a wide face, alar reduction can sometimes make the width of the face appear even wider, and it is stated that the decision should be based on harmony with the overall face rather than measurement values alone.[8].

What is the quality of evidence?

The current research consists of case series with small numbers—20, 22, 80 people—and follow-up observation extends only to 12 months.[5][1][6]Surgical techniques differ from study to study, and there are no randomized controlled trials comparing methods.[5][1][4]Satisfaction is measured by questionnaire, and "efficacy" is consistent, but "which method is best" has not yet been answered.[5][6].

Who is it suited for? What may need to be done at the same time.

It is suited for people whose alar protrusion or nostril size disrupts the balance of the overall nose.[3][9]Textbooks state that when the nostrils are short and the alar base is wide, lengthening the nostrils simultaneously with alar reduction is necessary.[8]In surgery that lowers the nasal tip height, the base widens and nostril size increases, which sometimes makes alar reduction necessary.[9]Review articles state that problems at the base of the nasal septum should be corrected before alar resection.[3].

Thinning the ala is often performed simultaneously with reduction of the nostril floor or outer edge.[8]In other words, although it appears to be surgery on the "ala alone," considering it as part of the overall design with the nasal tip and septum reduces complications.[3][9].

What to confirm during consultation.

First, whether what you want to reduce is protrusion, width, or nostril size.[3]Second, whether the incision is placed within the groove and how the suturing is done.[4]Third, the amount of resection and the fact that excessive removal cannot be reversed.[2][7]Fourth, the elevation of the scar around 3 months and its subsequent course.[1]Fifth, whether simultaneous surgery on the nasal tip or nostril length is necessary.[8][9].

Design changes based on skin thickness, alar protrusion pattern, nostril shape, and facial width. Therefore, you cannot determine your own resection amount from an article alone. During consultation, have your appearance from the front and below confirmed, nostril shape examined, and your tendency to form visible scars assessed, so that together you can clarify which type and how much to remove.