Decreased height of lower lip vermilion; Decreased volume of lower lip; Decreased volume of lower lip vermilion; Thin lower lip; Thin red part of the lower lip; Thin vermilion border of lower lip
Definition:
Height of the vermilion of the medial part of the lower lip more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the lower lip in the frontal view (subjective).