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What is a Mouth Cyst?

Posted on 4/26/2021 by Dr. Cheryl Freeman
What is a Mouth Cyst?Mouth cysts, also called mucous cysts, are fluid-filled sacs that can develop on the inside of your mouth. These cysts often do not cause any pain though feeling a bump inside your mouth may bother you a bit. In most cases, a mouth cyst will go away on its own. However, if it doesn't it is a good idea for Dr. Bryan Freeman and Dr. Cheryl Freeman at Randolph Center for Dental Excellence to take a look at it.

Types of Mouth Cyst?

Mouth cysts often appear near the salivary glands. There are two types of mucous cysts: mucoceles cysts and ranula cysts.


Mucoceles appear on the inside of your lips, cheeks, tongue, and roof of the mouth. It is most commonly found near the lower lip as a clear, pink, or bluish round and smooth cyst. These cysts may grow up to 1 cm in diameter.

Here is what you can expect if you have a mucoceles cyst in your mouth:

•  It is a painless bump but it may irritate you since you can feel it in your mouth.
•  This cyst may burst open by itself and may heal within a few days.
•  Sometimes, this cyst may reoccur after breaking open and healing.


Ranulas are cysts that occur on the floor of the mouth. They are bluish and may be dome-shaped. Here are some things you can expect with ranulas:

•  Like mucoceles, these are painless swelling on the floor of the mouth.
•  You may have difficulty chewing or talking if it becomes too big.
•  Sometimes, it can grow into the muscles of your neck which may cause trouble breathing. If this happens, you need to get urgent medical care quickly.

If you notice a big cyst in your mouth that is spreading and does not go away on its own, it's important that you contact us to get it treated.

Prevention and Treatment of Mouth Cysts

Mucoceles may form if because of lip sucking or trauma to the mouth. Ranulas develop when the salivary glands under your tongue become blocked.

To prevent these cysts from forming, you should get rid of habits like lip biting.

Most mucous cysts do not require treatment and can go away on their own. However, if a cyst keeps returning or is persistent, you may need to get it surgically removed by us.

Do not try to remove a cyst by yourself as it can damage your soft tissue and cause infection. Also, make sure to keep a good oral health care regimen.

If your cyst becomes uncomfortable, call us at (336) 444-2772 and we will treat it.

Randolph Center for Dental Excellence
Dr. Bryan Freeman and Dr. Cheryl Freeman

(336) 444-2772

134 Davis Street
Asheboro, NC 27203-5469

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