Description : Mucous cyst?
Last Answer : DefinitionA mucous cyst is a painless, thin sac on the inner surface of the lips. It contains clear fluid.Alternative NamesMucocele; Mucous retention cyst; Ranula; EpulisCauses, incidence, and risk factorsMucous cysts ... , fluid-filled sac appears on the inside of the lip. The sac is bluish and c