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 ...

Those who have a habit of biting their lips may find that a small bluish bump has developed inside their mouth. It might disappear on its own or it might linger. Dr. Zaineb Hassan Makhzoumi, an ...

A myxoid cyst is a small, benign lump that occurs on fingers or toes, near a nail. It’s also called a digital mucous cyst or mucous pseudocyst. The cause of myxoid cysts isn’t certain. They’re usually ...

Cystic fibrosis (CF) is an inherited condition characterized by abnormal, highly adherent viscous mucus. The mucus favors intractable infections in the lungs, typically with Pseudomonas aeruginosa but ...

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 ...