Flared Nostrils: What Nostril Flaring Means and How Wide Nostrils Are Treated

“Flared nostrils” describes two completely different things, and almost everything written about it conflates them.

Nostril flaring is an action — the nostrils widening for a moment and then returning to normal. It happens during exertion, during strong emotion, and during breathing difficulty. It is temporary and muscular.

Flared nostrils is a shape — a permanently wider nostril base, present at rest, determined by anatomy and ethnicity. It does not come and go.

The distinction matters because they lead to entirely different places. If your nostrils widen when you run, that is normal physiology. If a baby’s nostrils are flaring, that is a sign of respiratory distress needing urgent attention. And if you simply have a wider nostril base you would like narrowed, that is alar base reduction — a cosmetic procedure with nothing to do with either.

This guide covers all three: what flaring means, when it is a medical warning sign, and what can be done about naturally wide nostrils. Where breathing is the concern rather than appearance, nasal valve collapse, a deviated septum and enlarged turbinates are the more likely causes.

Flaring Versus Flared: The Difference

Nostril flaring is muscular. The nostrils widen briefly to reduce airway resistance and let more air in, then return to their resting position within seconds. Everyone does it, whether or not they notice.

Flared nostrils describes resting anatomy — a nostril base wider than the person would like, sometimes wider than the intercanthal distance, which is the rough aesthetic reference point. It is stable, and it is inherited.

If you are unsure which applies to you, look in a mirror while breathing normally and quietly. What you see is your resting shape. Then breathe in hard through your nose — any widening you see is flaring.

What Makes the Nostrils Flare?

Two small muscles do the work. The nasalis runs in a fan across the side of the nose, and its alar part pulls the nostril outward. The dilator naris sits at the nostril rim and widens the opening directly.

They exist for a reason. The nostril and the nasal valve just behind it form the narrowest part of the entire airway, so widening them measurably reduces the effort of breathing. When your body needs more air, it opens the front door.

Can everyone flare their nostrils?

Voluntarily, no. Roughly a third of people can flare their nostrils on command; the rest cannot, no matter how hard they concentrate. It is a matter of motor control over a small muscle group rather than the muscle being absent — the same reason some people can raise one eyebrow and others cannot.

Everyone flares involuntarily, though. Sprint up a flight of stairs and your nostrils will widen whether you can control them or not.

What does it mean when someone flares their nostrils?

In body language terms, nostril flaring is associated with heightened arousal — anger, indignation, sexual interest, physical effort. The mechanism is the same in each case: the sympathetic nervous system prepares the body for exertion, and part of that preparation is opening the airway.

It is worth being cautious about reading too much into it. Flaring accompanies any increase in breathing demand, including simply having walked up a hill or being warm. It signals physiological arousal, not a specific emotion.

When Nasal Flaring Is a Medical Warning Sign

This section matters more than the rest of the page.

Persistent nasal flaring at rest is a recognised sign of respiratory distress — the body recruiting accessory muscles because breathing has become hard work. In infants and young children it is one of the earliest visible signs, because they cannot tell you they are struggling.

Seek urgent medical help — call 999 or go to A&E — if nasal flaring occurs with any of the following, in a child or an adult:

• Flaring in a baby or young child at rest, particularly with rapid breathing
• Breathing that is fast, laboured or noisy — grunting, wheezing or stridor
• The chest or the spaces between the ribs drawing inward with each breath (recession)
• Blue or grey lips, tongue or skin
• Unusual drowsiness, floppiness, or difficulty rousing
• Being unable to feed, speak in full sentences, or complete a phrase without pausing for breath

Causes in children include bronchiolitis, croup, asthma and pneumonia. In adults, flaring at rest can accompany asthma attacks, pneumonia, heart failure and pulmonary embolism.

None of this is treated by a cosmetic surgeon. If you have arrived here worried about a baby’s breathing, stop reading and get medical help now.

Wide or Flared Nostrils as a Shape

Setting the medical picture aside, many people simply have a wider nostril base than they would like.

Why nostrils are wide

• Inherited anatomy — the single biggest factor. Nostril width, alar flare and nostril shape run in families.
• Ethnic variation — nasal proportions vary considerably between populations, and a wider alar base is a normal anatomical variant rather than a defect. Ethnic rhinoplasty approaches this by refining proportions while preserving the character of the nose.
• A short or under-projected nasal tip (tip shape and rotation are also what distinguish a button nose from a snub or upturned nose) — where the tip sits low, the nostrils splay outward and appear wider than they measure.
• Previous rhinoplasty — reducing tip projection can widen the alar base as a secondary effect, sometimes unexpectedly.
• Ageing — the tip drops with time and the nostrils appear to widen as a consequence.

Nostrils do not become permanently wider from picking your nose, from wearing a nose ring, or from smiling. These are common beliefs with no anatomical basis.

How nostril width is assessed

The usual reference is the intercanthal distance — the gap between the inner corners of the eyes. In the classical aesthetic proportion the alar base sits roughly within that width. Extending beyond it is described as alar flare.

That is a guide, not a rule. Proportion varies legitimately between individuals and populations, and a nose that measures outside the classical proportion may suit the face it sits on perfectly well. What matters is whether it bothers you.

Can Wide Nostrils Be Narrowed Without Surgery?

Not permanently.

Nose exercises and taping do nothing. The nostril base is supported by cartilage and skin; no amount of exercise reshapes cartilage, and taping produces no lasting change.

Makeup contouring creates a convincing visual narrowing in photographs and in person, and is a reasonable option for many people.

Dermal filler can improve the appearance in an indirect way. Adding projection at the tip lifts and narrows the apparent nostril width, without touching the nostrils themselves. This is non-surgical rhinoplasty, it lasts around 12 to 18 months, and it cannot reduce genuine alar width — only make it appear less prominent.

Weight loss makes no meaningful difference to nostril width.

Alar Base Reduction (Alarplasty)

Alar base reduction, also called alarplasty or nostril reduction surgery, narrows the nostril base by removing a precise wedge of tissue at the point where the nostril meets the cheek.

Which technique is used depends on what is wide:

• Alar wedge excision — where the nostril rim itself flares outward. Tissue is removed from the outer nostril wall.
• Nostril sill excision — where the nostril openings themselves are wide. Tissue is removed from the floor of the nostril.
• Combined — where both contribute, which is common.
• Alar cinch suture — a suture drawing the alar bases together, sometimes used alongside excision.

It takes 30 to 45 minutes and can be performed under local anaesthetic alone, or as part of a full rhinoplasty. It changes nostril width only — it does not alter the bridge, the tip or the profile.

Scarring

The honest answer is that alarplasty leaves a scar, but it is placed in the alar crease — the natural fold where the nostril meets the cheek — where a shadow already falls. In most people it becomes difficult to see within a few months. It does not disappear entirely.

Scarring is more noticeable where healing is poor, where excision was over-aggressive, or in skin prone to keloid formation. More on alar base reduction scarring.

Recovery

Stitches are removed at around a week. Swelling and bruising settle over one to two weeks, and most people return to work within a few days. Final shape becomes apparent at around three months as swelling fully resolves. More on alarplasty recovery.

Does it affect breathing?

Performed conservatively, no. Over-aggressive narrowing can restrict the airway or contribute to external nasal valve collapse — which is precisely why the amount removed is measured and marked carefully before any incision, and why alarplasty should be planned by someone who understands the nasal airway as well as its appearance.

Cost

Alar base reduction cost depends on whether it is performed alone under local anaesthetic or as part of a wider rhinoplasty, and on the anaesthetic required. Your exact cost is confirmed in writing after in-person consultation and examination. Finance is available through Chrysalis Finance, subject to status — see our finance options.

Alarplasty performed for appearance alone is not available on the NHS.

Flared Nostrils FAQs

Nasal Assessment at Centre for Surgery

Consultation for nostril concerns covers both appearance and function. Nostril width, alar flare, tip projection and nostril asymmetry are assessed together, because they influence one another — narrowing the nostrils without accounting for a low tip rarely produces the result people expect.

Where breathing is also a concern, the nasal airway is examined at the same time. Our ENT surgeon and rhinologist assesses the nasal valve, septum and turbinates, so that a cosmetic change is not made at the expense of the airway.

We will tell you plainly if the change you are describing is better achieved by adjusting tip projection than by narrowing the nostrils, or if what is bothering you sits within normal variation.

All surgery is performed by GMC-registered surgeons at our own day-surgery facility at 95–97 Baker Street, Marylebone. We are regulated by the Care Quality Commission and rated Good overall. We recommend a two-week cooling-off period before any surgery is booked.

Patient reviews

You can read our reviews in full on Google Reviews, or on our own patient reviews page. We are rated 4.6 on Google.

Book a consultation

Phone: 020 7993 4849
Email: contact@centreforsurgery.com
Address: 95–97 Baker Street, Marylebone, London W1U 6RN
Contact us to schedule your consultation

Your initial in-person consultation is £100, redeemable against the cost of surgery if you proceed.

Related Reading

• Nose shapes: the common types and how to identify yours
• Alar base reduction (alarplasty)
• What is alarplasty surgery?
• What is nostril reduction surgery?
• How long does alarplasty take to heal?
• Will I have visible scars after alar base reduction?
• How to make a wide nose smaller
• Why is one of my nostrils bigger than the other?
• Narrow nostril surgery for breathing difficulties
• Nasal valve collapse
• Ethnic rhinoplasty