Human Phenotype Ontology id HP_0000179 (Thick lower lip vermilion) is increased thickness of the lower lip, leading to a prominent appearance of the lower lip. The height of the vermilion of the lower lip in the midline is more than 2 SD above the mean. Alternatively, an apparently increased height of the vermilion of the lower lip in the frontal view (subjective). Also known as: Full lower lip vermilion, Increased height of lower lip vermilion, Increased volume of lower lip, Increased volume of lower lip vermilion, Plump lower lip, Prominent lower lip, Thick vermilion border of lower lip.