An oral mucous cyst, also called a mucocele, is a harmless swollen spot. It’s a good idea to get it checked out, though, especially if it’s bothersome. Oral Mucous Cyst Symptoms There are two types. Mucoceles show up on the inside of your lower lips, your gums, the roof of your mouth, or under your tongue. Those on the floor of the mouth are called ranulas. These are rare, but because they’re larger, they can cause more problems with speech, chewing, and swallowing. Mucoceles may have these traits: Moveable and painless Soft, round, dome-shaped…
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