FORMA FEATURE / NOSEColumella & nostrils: measurements, ratios, and research
The columella is the central strip between the nostrils. Its relationship to the alar rims, septum, and tip controls the appearance of the nasal base.
How columella & nostrils is measured
Columellar show is assessed relative to the alar rim in a standardized profile; nostril symmetry and shape require a basal view. This atlas’s front/profile views cannot fully show the base.
Ratios, ranges & competing claims
2–3 mm — A clinical reference for columellar show
A rhinoplasty review describes 2–3 mm of columella visible below the alar rim in a lateral view as an aesthetic reference. Read this alongside tip rotation, rim height, and nostril shape.
Clinical guide: A clinical planning reference, rather than a male population preference optimum. Millimeters require a calibrated photograph; a basal view is needed to assess nostril shape. Evidence-based Nasal Analysis for Rhinoplasty: The 10-7-5 Method
Practical takeaway
Aim for a small, visible strip in profile.
The clinical reference below gives a concrete starting point for columellar show. Read the strip relative to the alar rim, then compare nostril shape and symmetry from below.
What changes the answer
Extra show can result from the columella sitting lower or the alar rim sitting higher. Tip rotation also changes nasal-base visibility; those configurations need separate descriptions.
Connected facial features
Explore the interactive atlas and compare this feature with both fixed reference views.