Hypertrichosis lanuginosa congenita is a rare congenital skin disease characterized by the presence of 3 to 5cm long lanugo-type hair on the entire body, with the exception of palms, soles, and mucous membranes. The disease is hypertrichosis lanuginosa congenita (MONDO_0016381, a Monarch Disease Ontology term). Also known as: hypertrichosis universalis.