Laugier-Hunziker Syndrome is also known as idiopathic lenticular mucocutaneous pigmentation. It is characterized by asymptomatic mucocutaneous lentiginous macules, commonly located on the buccal mucosa and lips, and it is associated with longitudinal melanonychia. It is important to rule out other causes of similar hyperpigmentation. In this article, a clinical case is reported, with the characteristic lesions of this uncommon condition.