Alar Resection (Alarplasty): The Complete Surgeon’s Guide to Nostril Reduction

Of all the components of nasal surgery, alar resection is perhaps the one most underestimated by patients — and most demanding in terms of precision by surgeons. On the surface it sounds straightforward: remove a small amount of tissue from the side of each nostril to make the nose appear narrower and more refined. In practice, the alar base is a three-dimensional, architecturally complex structure where even a millimeter of over-resection can produce permanent, visible deformity that is difficult to correct.

At Abmedi, we perform alar resection as both a standalone procedure and as an integrated component of broader rhinoplasty. Whether a patient comes in wanting to address wide, flaring nostrils that have bothered them since adolescence, or their nose has widened after tip deprojection during a previous rhinoplasty, the principles are the same: precise anatomical assessment, conservative planning, and execution that preserves the natural curves of the alar base.

This guide covers the anatomy, the indications, the specific surgical techniques, who is a good candidate, what recovery involves, and — critically — what can go wrong and how to avoid it. It is written for patients who want to understand alar resection at a level that will make their consultation more productive and their decision more confident.

What Is Alar Resection?

Alar resection — also known as alarplasty, alar base reduction, or nostril reduction surgery — is a surgical procedure that reduces the width, size, or flare of the nostrils by removing a precisely planned amount of tissue from the alar base. The alar base is the lowermost, outermost portion of the nose where the nostril wall meets the face.

The procedure is part of the broader category of nasal base surgery — a term that encompasses all surgical modifications to the lower third of the nose below the tip. Alar resection may be performed as a standalone procedure under local anesthesia, or as a component of open or closed rhinoplasty addressing the entire nose.

The primary goals of alar resection, as established in the peer-reviewed literature, are:

• Narrowing the nasal base when the inter-alar distance is disproportionately wide relative to the intercanthal distance (the ideal ratio is approximately 1:1)
• Reducing alar flaring when the lateral walls of the nostrils extend beyond the alar-facial groove
• Improving nostril shape — correcting asymmetry, excessive ovoid width, or horizontally oriented nostrils
• Restoring nasal-facial proportion when tip modification during rhinoplasty has secondarily widened the alar base

Understanding Alar Base Anatomy

Effective alar resection requires a thorough understanding of what the alar base actually consists of — because different components of the base can be disproportionate in different patients, and the surgical approach must be matched to the specific anatomical problem.

The alar base is composed of several distinct structural elements:

• The alar lobule: the rounded, fibrofatty tissue of the nostril wall itself — the part that gives the ala its ‘wing’ shape. Unlike structures higher in the nose, the alar lobule has no underlying cartilage. It is supported entirely by its fibrous and soft tissue architecture
• The alar-facial groove (alar crease): the natural crease where the nostril wall meets the cheek. This is an essential landmark — incisions for alar resection are hidden within this groove, and the groove must be preserved as a distinct, natural-looking fold after surgery
• The nasal sill: the floor of the nostril, the horizontal area between the medial crural footplate and the alar-facial groove
• The columella footplate: the medial base of the columella, which forms the innermost border of the nostril opening
• The alar-cheek interface: the transition zone between the nostril wall and the cheek — loss of this distinct transition through over-resection is one of the hallmarks of a botched alar resection

Clinical assessment of the alar base requires evaluating not just the width as seen from the front, but the three-dimensional shape — the thickness of the alar wall, the degree of lateral flare, the position of the alar-facial groove, the height of the alar rim above the nostril floor, and the symmetry between the two sides. These measurements determine which of the three main resection techniques is most appropriate.

Types of Alar Resection: Which Technique Is Right?

There are three core surgical techniques for alar base reduction, each designed to address a specific pattern of anatomical excess. A comprehensive understanding of these techniques — and their differences — is essential for both patient education and surgical planning. The choice between them is driven entirely by what the nose’s anatomy actually requires.

1. Alar Wedge Resection (Weir Excision)

The alar wedge resection — historically called the Weir excision after Robert Weir who first described it in 1892 — is the most commonly performed alar base technique. A wedge-shaped segment of tissue is removed from the alar wall at the alar-facial groove. The starting point of the lateral incision determines the outer diameter of the nostril, while the angle of the cut as it enters the vestibule (inside of the nostril) determines the inner diameter. By adjusting these two parameters, the surgeon can independently control the degree of external nostril narrowing and the reduction in nostril opening size.

The incision is placed precisely within the alar-facial groove, where, once healed, the resulting scar is concealed by the natural shadow of the crease. This is one of the most forgiving incision placements in all of nasal surgery — when it is placed correctly. A cephalically displaced incision — one placed too high on the alar wall — creates an unnatural-looking snarled appearance. A caudally displaced incision — one placed too low — can produce alar hooding. Both errors are visible and difficult to correct.

2. Nostril Sill Excision

When the primary problem is a wide inter-alar distance at the nasal base — rather than alar flaring — the excess tissue lies in the nasal sill (the floor of the nostril) rather than in the alar wall itself. Sill excision removes a crescent of tissue from the floor of the nostril, drawing the alar base inward and reducing the inter-alar distance without significantly changing the shape of the alar wall or the degree of flare. Because this incision is entirely within the nostril floor, it produces no external visible scar whatsoever.

The limitation of sill excision as a standalone technique is that it does not address alar flaring. In a patient with a wide sill but no significant flare, this is ideal. In a patient with both problems, sill excision alone provides only partial correction.

3. Combined Wedge and Sill Resection

The combined technique addresses both alar flaring and excess inter-alar width simultaneously. A wedge of the alar wall is removed and the incision is extended medially along the nasal sill floor. This is the most comprehensive approach and provides the greatest degree of alar base narrowing. It is frequently indicated in Asian rhinoplasty patients who characteristically have both significant alar flare and wide inter-alar distance — a pattern that neither the wedge nor the sill excision can fully address independently.

The combined approach requires precise bilateral planning because the cumulative tissue removal from both the lateral wall and the sill represents the largest total excision volume. As published in peer-reviewed rhinoplasty literature, 15–20% of rhinoplasty procedures that involve tip deprojection require a combined alar wedge and sill resection to correct the secondary widening that follows deprojection.

Who Is a Good Candidate for Alar Resection?

Alar resection is most appropriate for patients whose nasal appearance is affected by one or more of the following specific concerns. Identifying the right candidate — and distinguishing alar base problems from other nasal issues — is the first job of the consultation.

Good candidates include:

• Patients with alar flaring where the lateral walls of the nostrils extend significantly beyond the alar-facial groove, giving the nose a horizontally wide, spread appearance
• Patients whose inter-alar width meaningfully exceeds their intercanthal distance — the most commonly cited objective criterion for alar base reduction
• Patients who have had tip rhinoplasty involving deprojection, where the consequent widening of the alar base has been documented — research notes this occurs in 15–20% of deprojection cases
• Patients seeking to address nostril asymmetry where one nostril is wider, more flared, or positioned differently from the other
• Patients with alar hypertrophy — alae that are thick, fleshy, and three-dimensionally oversized rather than simply wide at the base
• Patients who have already healed from prior nasal surgery (at least 12 months) and wish to address the alar base as a secondary refinement
• Patients in good general health without active nasal infection, uncontrolled systemic conditions, or bleeding disorders

Patients who are NOT good candidates include those whose apparent nasal width is caused by other structural factors — for example, a wide nasal dorsum, a deprojected flat tip, or a broad nasal bone — where alar resection alone will not address the root cause. This is a critical assessment point. Performing alar resection on a nose whose width comes primarily from the bones or dorsum produces minimal cosmetic improvement at the cost of a permanent scar in the alar crease.

The Pre-Operative Consultation at Abmedi

Every alar resection begins with a detailed consultation. For what is often perceived as a ‘small’ procedure, the pre-operative assessment is surprisingly involved — because the consequences of under-planning are visible and permanent.

The consultation at Abmedi includes:

• Baseline photography from frontal, lateral, oblique, and basal (from below) angles under consistent lighting — the most important diagnostic tool for planning alar base surgery
• Measurement of the inter-alar distance and intercanthal distance to establish the degree of excess
• Assessment of alar flare angle and the position of the alar-facial groove relative to the nostril opening
• Palpation of the alar tissue to assess wall thickness and fibrofatty content — which determines how much tissue volume is removed per millimeter of excision
• Evaluation of nostril shape, symmetry, and orientation (vertical, horizontal, or oblique)
• Assessment of whether the columella and sill contribute to apparent width — sill width excess requires a different resection pattern than alar wall excess
• Discussion of whether alar resection alone addresses the full nasal concern, or whether it should be performed concurrently with tip surgery or rhinoplasty
• Surgical marking discussion: at Abmedi, I draw the proposed excision lines with the patient watching in a mirror, making adjustments until both the patient and I are satisfied with the planned correction before any incision is made

This last point — doing the marking together with the patient — is something I feel strongly about. Alar resection is irreversible, the results are immediately visible, and the patient’s perception of their own nose is highly personal. Ensuring that the planned correction aligns with what the patient actually wants — not just what the surgeon thinks is ideal — is essential.

Preparing for Alar Resection Surgery

Alar resection is a shorter and less involved procedure than full rhinoplasty, but the pre-operative preparation is no less important:

• Stop smoking at least two weeks before and two weeks after surgery — nicotine impairs wound healing and significantly increases the risk of hypertrophic scarring in the alar region, which is particularly problematic given the incision’s location
• Discontinue blood-thinning medications and supplements (aspirin, ibuprofen, fish oil, vitamin E, ginkgo biloba) 10–14 days before the procedure
• Avoid direct sun exposure on the nose in the weeks before surgery — tanned or sun-damaged skin around the incision site heals with greater pigmentation variation
• Do not wear nasal piercings; these should be removed at least a week before surgery and cannot be reinserted for 6–8 weeks post-operatively
• Arrange a driver for the day of surgery if intravenous sedation is being used alongside local anesthesia
• Plan for 10–14 days of reduced social obligations, during which bruising and swelling around the nostrils will be visible

What Happens During the Procedure

Alar resection as a standalone procedure is performed under local anesthesia with or without mild oral sedation, taking approximately 45 minutes to 1 hour for bilateral correction. When performed as part of full rhinoplasty, it is conducted under general or IV anesthesia at the end of the rhinoplasty — after all structural work on the cartilage and bone is complete — since changes in tip projection, rotation, or dorsal height can alter the apparent alar width, and the alar resection markings must reflect the nose’s final structural state.

Surgical sequence for the standard alar wedge resection:

• Pre-operative photographs are reviewed and the planned excision is marked bilaterally with a surgical marker while the patient is in an upright position
• Local anesthetic is infiltrated into the alar-facial groove area on both sides; the area is allowed to fully numb
• The lateral incision is made first, beginning in the alar crease at the planned starting point — this determines the new outer nostril diameter
• The incision is carried into the vestibule (inner nostril wall) at the planned angle, creating the wedge of tissue to be excised
• The wedge of tissue is removed with sharp scissors or a No. 11 blade; the excised tissue is set aside and measured before closure
• The wound edges are assessed for tension and symmetry before closure — a critical checkpoint
• Fine sutures (typically 5-0 or 6-0 absorbable internally, with 6-0 non-absorbable externally along the alar crease) are placed to reapproximate the wound edges precisely
• The first side is completed and fully assessed for shape, symmetry, and proportionality before beginning the contralateral side — this allows real-time comparison and adjustment

Recovery After Alar Resection

Days 1–5: Immediate Post-Operative Period

Swelling, firmness, and mild bruising around the nostrils are expected. The alar-facial groove area may appear slightly raised and firm as the wound edges heal and suture swelling develops. Most patients describe the sensation as mild tightness rather than significant pain. Cold compresses (gently applied to the cheeks and away from the sutures) help with comfort. No makeup should be applied near the incisions; antibiotic ointment is applied to the suture lines as directed. Blowing the nose should be avoided completely for the first week.

Days 5–10: Suture Removal

External sutures along the alar crease are typically removed between day 5 and day 7 for the alar wedge technique — earlier removal reduces the risk of suture track marks. Dissolvable internal sutures are left in place. After suture removal, patients often feel that the nose looks more natural, as the firmness along the suture line begins to soften. Light work and social activities are generally manageable by this point with a small amount of camouflage makeup where appropriate.

Weeks 2–6: Scar Maturation

The alar crease scar goes through a predictable maturation cycle. For approximately two to three weeks after suture removal, the scar may appear pink, slightly raised, or firm. This is normal scar healing and should not be mistaken for a complication. Daily gentle massage of the scar — starting at approximately 2–3 weeks with the surgeon’s guidance — helps the tissue soften and flatten more quickly. Silicone gel or silicone strip application to the external scar during this phase significantly improves long-term scar appearance. Strict sun avoidance (or SPF 30+ coverage) over the alar crease is essential for at least 3–6 months to prevent post-inflammatory hyperpigmentation, which is particularly relevant for patients with Fitzpatrick skin types III–VI.

Months 2–6: Final Result Emerges

The full result of alar resection becomes apparent between 2 and 4 months as all scar-related swelling and firmness has resolved. By this point, the alar crease scar should be nearly imperceptible in the shadow of the groove. The nose will appear noticeably more refined, narrower at the base, and better proportioned to the rest of the face. At Abmedi, we photograph outcomes at 3 months and 6 months to formally assess the result and identify any refinements needed.

Benefits of Alar Resection

• Improved nasal-facial proportion — the base of the nose sits in better harmony with the intercanthal width, creating a more balanced overall appearance
• Reduction of alar flaring — the lateral nostril walls no longer spread beyond the alar-facial groove during repose or animation
• More refined, defined nostril shape — the nostrils appear more elegantly oval rather than round or ovoid
• Improved facial symmetry — when alar asymmetry exists, targeted resection can equalize the sides
• Minimally invasive compared to full rhinoplasty — alar resection is shorter, requires less anesthesia, and carries lower systemic risk than cartilage-level nasal surgery
• Highly durable results — removed tissue does not regenerate, making the structural correction essentially permanent
• Complementary to rhinoplasty — when performed as part of comprehensive nasal surgery, alar resection completes the lower third of the nose and prevents secondary widening from tip work

Risks, Complications, and the Problem of Over-Resection

Alar resection is a permanent procedure. Every millimeter removed is a millimeter that cannot be replaced without grafting. The published literature — including peer-reviewed case studies in Plastic Surgery Case Studies — documents the consequences of over-resection clearly: overly small nostrils, nostril sill notching, alar lobule flattening, loss of the alar-facial groove, and a ‘pinched’ or ‘operated’ appearance that is instantly recognizable and extremely difficult to correct.

General risks of alar resection include:

• Visible scarring: when the incision is misplaced (not within the alar crease), the resulting scar sits on visible facial skin. This is the most common preventable complication
• Asymmetry: subtle size or shape differences between the two nostrils. Minor asymmetry is common in early healing and typically improves; persistent asymmetry may require revision
• Over-resection: the most serious complication. Removing more than the planned amount — whether through miscalculation, intraoperative bleeding obscuring landmarks, or poor tissue marking — creates deformity that requires complex reconstruction with composite cartilage grafts or local tissue flaps
• Under-correction: insufficient resection leaves residual flaring or width; may require revision with additional tissue removal (typically straightforward if conservative approach is maintained)
• Hypertrophic scarring: more common in patients who smoke, have certain skin types, or develop post-operative infection. Early treatment with silicone and steroid injection is effective
• Wound dehiscence: partial opening of the suture line; usually heals well with proper wound care but may affect scar quality
• Changes to airway: aggressive sill resection can narrow the nostril aperture, rarely causing subjective breathing changes. Assessment of nostril airway dimensions before surgery is important in all cases
• Loss of alar-facial groove definition: aggressive resection obliterates the natural crease, creating a flat, featureless alar base contour — one of the classic signs of an over-resected nose

Alar Resection in Asian Rhinoplasty: Special Considerations

Alar resection is among the most frequently performed components of Asian rhinoplasty, and for good reason: the alar base characteristics common to many East and Southeast Asian noses — wide inter-alar distance, significant lateral flare, horizontally oriented nostrils, and thick alar tissue — make base refinement a central part of comprehensive nasal improvement rather than an occasional adjunct.

Several Asian-specific anatomical considerations affect surgical planning:

• The nasal inter-alar distance in Asian noses is typically wider relative to intercanthal distance than in Caucasian noses — the deviation from the 1:1 ratio is often more significant and requires more substantial combined sill and wedge resection
• The alar tissue itself is frequently thicker and more fibrofatty, meaning that the same width of excision removes more volumetric tissue in Asian patients — requiring even more conservative planning
• A three-dimensional assessment is essential: in many Asian patients, the alar base excess is not limited to width but includes vertical height and longitudinal length — the 3D M-shaped resection technique was specifically developed and validated for this population
• Alar resection is frequently combined with tip augmentation rhinoplasty in Asian patients, as increasing tip projection simultaneously narrows the perceived alar base width — meaning the planned resection should be assessed after tip modification is complete, not before

Cost of Alar Resection

As a standalone procedure at Abmedi, alar resection is priced individually based on the technique required (wedge, sill, or combined), whether it is performed bilaterally or unilaterally, the anesthesia option selected, and facility fees. As a general reference for the United States market, standalone alar base reduction typically ranges from $1,500 to $4,000. When performed as part of a comprehensive rhinoplasty, the alar component is generally included within the overall rhinoplasty fee rather than separately itemized.

Alar resection for purely cosmetic reasons is not covered by health insurance. In rare functional cases where significant nostril asymmetry or alar collapse is causing airway obstruction, a functional component may be documented — but this is uncommon for standard alar base width reduction. All pricing is discussed transparently during the consultation at Abmedi. Financing options are available for eligible patients.

Frequently Asked Questions

Will the scar from alar resection be visible?

When the incision is placed precisely within the alar-facial groove — the natural crease where the nostril meets the cheek — the resulting scar lies in a shadow and is effectively invisible after full healing. Most patients at Abmedi are unable to identify their own scar in photographs at 6 months. The caveat is technique: a misplaced incision that sits on the visible alar wall rather than in the groove will be visible and is very difficult to reposition after the fact. The crease placement is the single most important technical decision in alar resection.

How much can the nostrils actually be narrowed?

A conservative, safe single-stage alar resection typically reduces the inter-alar distance by 2–4 mm per side. This represents a meaningful visible improvement in most patients — the nose appears noticeably more refined without looking operated-on. More aggressive single-stage reductions are associated with significantly higher complication rates and should be approached with great caution. In patients requiring more substantial narrowing, staged procedures with intervals of at least 6–12 months are safer than attempting maximal correction in one session.

Can alar resection be reversed if I dislike the result?

No — removed tissue cannot be restored. This is why conservative planning and clear pre-operative communication about goals and expectations are so important. If a patient is under-corrected (still too wide after healing), a revision to remove additional tissue is straightforward. If a patient is over-corrected (nostrils too small or notched), reconstruction requires composite cartilage grafts from the ear — a more complex and less predictable correction. We consistently advocate for conservative initial resection for exactly this reason.

How is alar resection different from rhinoplasty?

Rhinoplasty is a broad term encompassing surgical reshaping of the nose, typically addressing the cartilage and bone — the dorsal hump, tip shape, nasal width at the bridge, septal deviation, and so on. Alar resection specifically addresses the soft tissue of the nostril base — the fibrofatty alar wall and sill. The two can be performed together (and frequently are for comprehensive nasal refinement) or independently, depending on the patient’s specific concerns. A patient who is satisfied with the overall shape of their nose but bothered only by wide nostrils may be an excellent candidate for alar resection as a standalone procedure without any cartilage or bone work.

How soon after rhinoplasty can I have alar resection?

If alar resection was not performed as part of the original rhinoplasty, it is best to wait at least 12 months before pursuing it as a secondary procedure. This allows the nose to fully heal and for any residual swelling — which significantly affects the apparent alar width — to completely resolve. Operating on still-swollen tissue makes accurate marking impossible and increases the risk of over-resection. After 12 months, the nose is in a stable, assessable state that allows precise surgical planning.

Alar resection is one of those procedures where the difference between an outstanding result and a disappointing one comes down to millimeters — in planning, in execution, and in restraint. When it is performed with the right anatomical understanding, conservative tissue management, and clear communication between patient and surgeon, it delivers a quietly refined improvement that many patients describe as the change that finally brought their nose into proportion with the rest of their face. If you are considering alar resection, the most productive first step is a consultation with a surgeon who will take the time to assess your specific nasal anatomy, discuss realistic expectations honestly, and plan a correction that enhances your appearance without ever looking operated-on.

— Abmedi Rhinoplasty & Nasal Surgery Team

This article is for educational purposes only and does not replace an individualized in-person consultation with a qualified surgeon.