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What is a ranula?

Dr. Jeanne Morrison, PhD
Family Practitioner

A ranula is a mucous cyst found on the bottom of the mouth, underneath the tongue. They occur when a salivary or sublingual gland is blocked. They are often blue in appearance and painless. They may get large enough to fill the mouth, raise the tongue, or even swell the neck.

A ranula is a cyst on the floor of the mouth, usually due to an obstruction in your sublingual glands. Sublingual refers to the glands in the floor of your mouth. The cyst is usually painless. If you are concerned about your ranula or think you may have one, see your dentist.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.