Flat and Wide Nose Shape
A flat, wide nose pairs a low bridge with a broad base and an index above 85. Learn to calculate the nasal index and find frames built for a low root.
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A flat or wide nose (platyrrhine nasal morphology in anthropometric terms) combines a low dorsal height with a broad alar base, producing a nasal index above 85. Index is the deciding figure. It is calculated as nose width divided by nose height times 100, and the three conventional bands read leptorrhine below 70, mesorrhine 70 to 85, and platyrrhine above 85.
Dorsal height is the second half of the description. The bridge sits close to the plane of the face, especially near the root, so the nasofrontal angle opens toward the upper end of its usual 115 to 130 degree range. The columella meets the upper lip in the ordinary spread, about 90 to 95 degrees in men and 95 to 110 in women. Tip projection often falls below the conventional reference of 0.55 to 0.60 against nasal length, because a low bridge gives the tip less structure to project from.
This configuration is common across many East Asian, Southeast Asian and African populations, and it is one of several normal patterns of human nasal anatomy. The index is a proportion and nothing else. It ranks nothing, predicts nothing, and describes no quality of any person. Leslie Farkas built the soft-tissue measurement method the numbers rest on, and Google MediaPipe Face Mesh reads the same landmarks from 468 markers inside your browser.
What follows: how a low dorsum and wide base look in practice, how to calculate and read the index, the population point stated plainly, the boundary against two other broad types, front and side behavior, light across a shallow ridge, the eyewear fit question this shape raises more than any other, and camera distance. The nose shapes hub holds every description.
What a low dorsum and wide base look like
Dorsal height is measured outward from the facial plane, and on this shape it stays modest along the full length. The root begins shallow, barely raised at the inner eye corners, and the bridge builds height gradually if at all.
Because the dorsum is low, its top surface is also wide. A gently curved ridge presents more surface to the light than a tall narrow one, so the central highlight spreads out.
Base width carries the other half. The outer nostril rims sit beyond the vertical lines dropped from the inner eye corners, the reference the neoclassical facial canons use for average nasal width. Nostrils often show from the front.
Tip definition varies independently and does not change a classification resting on height and width alone.
Calculating and reading the nasal index
Calculation needs two distances from a level frontal photograph: camera at eye height, head straight, no tilt.
| Step | Measurement | Landmark to landmark |
|---|---|---|
| 1 | Nose width | Outer edge of one alar rim to the other |
| 2 | Nose height | Nasion between the eyes to subnasale |
| 3 | Index | Width divided by height, times 100 |
| 4 | Band | Under 70, 70 to 85, or over 85 |
Take width at the widest visible point of the alar rims, not across the nostril openings, which reads several millimeters short. Take height from the nasion, the deepest point of the root, down to the subnasale where the columella meets the lip.
A dropped chin shortens the height term and inflates the result, so repeat on a second frame. Two readings within a couple of index points can be trusted; a wider gap means the head was not level. The same care applies to reading what the number means.
The population point, stated plainly
Population variation in nasal proportion is documented on every continent, and the platyrrhine band is well represented among people of East Asian, Southeast Asian and African descent. That is measured variation, not a category with any other content.
Nineteenth-century anthropometry used these figures to rank populations, and that work was put to explicitly racist ends. The measurements survived because clinicians and illustrators need proportion vocabulary. The interpretation did not, and this page uses none of it.
So nothing here frames a reading as better or worse, and nothing suggests changing anything. The index is a ratio between two distances, and the boundaries between named types come next.
The boundary against nubian and fleshy
Three broad descriptions overlap, and they separate on height and on length.
- Flat and wide: low dorsal height with a broad base, index above 85.
- Nubian: long, with a wide base and a mostly straight dorsum of ordinary height.
- Fleshy: broad throughout with thick soft tissue, index often mesorrhine or higher.
Length answers the first question. A long nose over a wide base points at nubian, since the shape described here measures average or short in height.
Tissue thickness answers the second. A fleshy nose takes its breadth from a thick soft-tissue cover, while this one takes its width from base structure and its flatness from a low bony vault. The two coexist, and both labels can be accurate at once.
Front and side reading
From the front this shape shows its whole classification. The base occupies clear horizontal width, the nostrils show as visible openings, and the dorsal highlight spreads into a soft band instead of a line.
From the side it reads quietly. The profile line runs close to straight, projection is modest, the columella angle unremarkable. What the side frame adds is dorsal height, hard to judge from the front and easy in silhouette.
Take both views. Then look at where the light landed, because a shallow dorsum photographs differently under different sources and that is what any makeup approach works with.
Light across a low bridge
Light behavior on a low dorsum is straightforward. A surface sitting close to the cheeks catches much the same light they do, so contrast stays low and edges stay soft.
A narrow highlight down the exact center of the dorsum brightens a thin strip, and a bright strip between two darker areas reads as a raised ridge. Keep it genuinely narrow. A wide band adds apparent width, which is the opposite effect.
Soft shadow along both outer edges of the bridge, parallel from the inner brow down to the alar crease, deepens the contrast that a flat bridge lacks. Blend both edges until no boundary shows, and keep the pair symmetrical, since uneven shading is what makes contour visible in photographs.
None of this alters structure, and none of it is necessary. It is light placement, the same as stage lighting. Eyewear on the same low root is practical rather than cosmetic.
Low bridge fit eyewear
Fit is where this shape has the most real-world consequence: standard frames are engineered around a taller root and a narrower base. On a low root they slide down and the lenses rest on the cheeks.
- Adjustable pads: the most reliable answer, since pads on movable arms lift the frame and can be spread to sit on a wider surface.
- Keyhole bridge: grips the sides of the dorsum and clears the top, useful where a flat bar would find nothing to sit on.
- Saddle bridge: lays across the whole upper surface, so it needs enough height to make contact and often perches too high here.
Frames sold as low bridge fit or alternative fit combine raised pads, a wider bridge measurement and a shorter distance between lens and face. Check the middle of the three numbers printed inside the temple arm: 20 millimeters or more suits a wide base, against 16 to 18 on standard sizing. How that fit photographs depends on the camera.
Camera distance and a fair reading
Distance changes measured width more than anything else in this list. A short focal length front camera enlarges whatever sits closest to the sensor, and on a straight-on selfie taken at arm's reach that is the center of the face.
Move back to about five feet, shoot on the rear camera, and crop the frame afterward. An arm's-length selfie is not a fair reading of the index, and it consistently reports a higher number than a properly distanced frame does.
Lighting is the second correction. Front light renders the base honestly, while overhead light drops shadow along one side of the dorsum and side light exaggerates the width of a low ridge. Level the head, front-light the face, then measure. The Greek page carries a straight-profile reference.
A flat or wide nose is a low dorsal height over a broad alar base, placed by an index above 85 with an open root angle and modest projection. Height and width define it, the index calculation needs alar edges and a level head, the population point is measured variation and nothing more, length and tissue thickness mark the borders against nubian and fleshy, the front view classifies while the side view supplies dorsal height, a narrow central highlight between soft parallel shadows changes only where light falls, adjustable pads and low bridge fit frames solve a real fitting question, and a close lens inflates every width it records. Shoot from five feet, then measure. The analyzer on the tools page will read the same landmarks.
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