Tubercle on the Female Upper Lip, Anterior View

Description

Centered on the female upper lip, the tubercle forms a midline prominence of the vermilion bordered superiorly by the vermilion border (cutaneous-mucosal junction) and framed laterally by the peaks of the Cupid’s bow. Just superior to the vermilion, the philtral columns ascend on either side toward the base of the columella, placing the tubercle inferior to the nasal sill and medial to the oral commissures. The porcheilon (a cheilion-related lip landmark used in anthropometry) is referenced at the red lip margin, helping anchor the tubercle’s position along the midline of the upper vermilion. For cleft lip repair, this is a landmark worth respecting. Reconstructive techniques such as rotation-advancement aim to re-create a symmetric Cupid’s bow and adequate central vermilion bulk; flattening or lateral displacement of the tubercle often reads as an unnatural upper lip even when the scar is well placed. A similar problem appears in aesthetic practice, where hyaluronic acid filler placed too diffusely along the upper vermilion can efface the central tubercle, while overfilling it can produce an obvious anterior projection with altered lip seal. Use this anterior view when teaching surface anatomy of the mouth in head and neck or dental anatomy courses, and when illustrating clinical discussions on cleft lip outcomes, perioral injectables, or anthropometric point placement for facial analysis in women. It also fits well in patient education materials that explain why midline vermilion shape affects smile aesthetics. Anatomical accuracy verified by SciePro's Medical Advisory Board.