Mucous cysts develop when salivary glands become plugged. They’re usually temporary, but if left untreated, they can become permanent. A mucous cyst, also known as a mucocele, is a fluid-filled ...

Mucous cysts are pseudocysts (cystic structures lacking a true lining) that usually appear on the middle or index finger of the dominant hand; toe involvement is uncommon. Although most mucous cysts ...

Oral mucous cysts develop in the mouth. They appear near salivary gland openings, often on the lips or the floor of the mouth. A cyst on the floor of the mouth is known as a ranula. A cyst on the gums ...