Facial warts are common among adults. They are contagious and grow on the facial skin or mucous membranes cause by a virus. Facial warts usually begin as a small raised bump on the facial skin. They are often the same color as the skin. They do not have roots, seeds or branches. They could sometime appear as a black dot. This is where a tiny blood clot occurs in the vessels. Facial warts are very hard to determine so a specialist is recommended.