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. 2025 Apr 16;14:444. [Version 1] doi: 10.12688/f1000research.162911.1

Table 1. The anthropometrical landmarks of the face along with their descriptions. 8 .

Anthropometrical landmarks Definition (Location)
Vertex (v) The highest point on the head (Top of the skull, along the midline)
Trichion (tr) Anterior hairline at the mid-line
Glabella (g) The most prominent point between the eyebrows, above the nasal root (Junction of the frontal and nasal bones)
Nasion (n) The point where the nasal and frontal bones meet (Junction of the nasal bones and frontal bones at the root of the nose)
Exocanthion (ex) The soft tissue point located at the outer commissure of eye fissure
Endocanthion (en) The soft tissue point located at the inner commissure of eye fissure
Palpebralesuperius (ps) The highest point in the midportion of the free margin of each upper eyelid
Palpebraleinferius (pi) The lowest point in the midportion of the free the margin of each lower eyelid
Orbitale (or) The lowest point of the orbital margin (Lowest point of the eye socket’s bony rim)
Superaurle (sa) The highest point of the free margin of the auricle
Subaurale (SBA) The lowest point on the free margin of the ear lobe
Subnasale (sn) The point where the base of the nasal septum meets the upper lip (Junction of the columella and the upper lip)
Sellion (se) The deepest point of the saddle-like depression at the root of the nose (Between the nasal bones and frontal process of the maxilla)
Pronasale (prn) The most protruding point of the nose tip (Anterior-most point of the nasal tip)
Alare (al) The most lateral point of the nasal aperture (Lateral edges of the nostrils)
Labiale inferius (li) The most anterior point on the vermilion border of the lower lip (Midpoint of the lower lip’s red border)
Labiale superius (ls) The most anterior point on the vermilion border of the upper lip (Midpoint of the upper lip’s red border)
Cheilion (ch) The point located at the corner of the mouth, specifically where the upper and lower lips meet laterally (The angle formed by the meeting of the upper and lower lips)
Stomion (sto) The point of intersection between the upper and lower lips when the mouth is closed (Midpoint where upper and lower lips meet)
Gnathion (gn) The lowest point on the mandibular symphysis (Lowest midpoint of the chin)
Gonion (go) TThe most lateral and posterior point of the mandibular angle (Outer corner of the jawline where the jaw turns upward)
Pogonion (pg) The most anterior point on the chin (Most forward point of the mandibular symphysis)
Tragion (t) The most superior point of the tragus of the ear (Top of the carti-laginous projection in front of the ear canal)