| Vermilion border | |
|---|---|
 Human lips with the vermilion border outlined. A patch of erythema above the upper lip makes it more difficult to distinguish the vermilion border. | |
 This left cheek incision extends from the left commissure towards the left ear and it breaches the vermilion border (click to see close-up). In order to maintain aesthetics as best possible, the first suture was placed at or near the vermilion border to ensure a contiguous line upon healing. | |
| Details | |
| Identifiers | |
| Latin | pars intermedia labiorum oris |
| TH | H3.04.01.0.00010 |
| Anatomical terminology | |
The vermilion border (sometimes spelled vermillion border), also called margin or zone, is the normally sharp demarcation between the lip and the adjacent normal skin. It represents the change in the epidermis from highly keratinized external skin to less keratinized internal skin. It has no sebaceous glands, sweat glands, or facial hair.[1][2]
It has a prominence on the face, creating a focus for cosmetics (it is where lipstick is sometimes applied) and is also a location for several skin diseases. Its functional properties, however, remain unknown.[3]
- ^ Scheid, Rickne C.; Woelfel, Julian B. (2007). "2. Oral examination: normal anatomy of the oral cavity". Woelfel's Dental Anatomy: Its Relevance to Dentistry (7th ed.). Lippincott Williams & Wilkins. pp. 81–82. ISBN 9780781768603.
- ^ Cite error: The named reference
Andrews2018was invoked but never defined (see the help page). - ^ Kobayashi, H; Tagami, H (March 2004). "Functional properties of the surface of the vermilion border of the lips are distinct from those of the facial skin". British Journal of Dermatology. 150 (3): 563–567. doi:10.1046/j.1365-2133.2003.05741.x. PMID 15030342. S2CID 42980307.