Apr 19, A mucous cyst, also known as a mucocele, is a fluid-filled swelling that occurs on the lip or the mouth. The cyst develops when the mouth’s salivary glands become plugged with mucus. Most cysts are on the lower lip, but they can occur anywhere inside your mouth.
May 15, Mucous cysts are small, fluid-filled sacs that can develop on fingers and lip biting; sucking the inner cheek; lip sucking; piercings; abnormal.
These cysts commonly occur on the inside of the lips but can also form on your tongue, palate, inside of the cheeks, floor of the mouth or around piercings on the .