Lingual Frenulum Issues and Sublingual Gland Cysts - Otolaryngology

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Issues related to the frenulum and sublingual glands?


Hello Doctor, a few days ago I noticed a foreign sensation under my tongue along the frenulum (which I found online is called the lingual frenulum).
When I looked in the mirror, I saw a symmetrical small red bump on each side.
After a few days, they have shrunk a bit and the redness has decreased, and they don’t feel much when I touch them.
I would like to ask the doctor: 1) What could this problem be, and is it necessary to see a doctor? 2) Additionally, I have read about submandibular gland cysts and feel that my submandibular glands are slightly swollen, but there are no blisters.
Would this be considered a submandibular gland cyst? Thank you, Doctor, for taking the time to respond.

JAM, 20~29 year old female. Ask Date: 2021/07/14

Dr. Zheng Jueyi reply Otolaryngology


Hello: The common issue involves the openings of the submandibular salivary glands on both sides.
If there is no significant discomfort, you may observe it yourself.
If the sublingual glands do not show noticeable swelling or blisters, it is mostly a normal condition.
If you are concerned, you can visit an otolaryngologist for an examination.
Wishing you peace and health.
Sincerely, Dr.
Cheng Jue-Yi, Director of the Department of Otolaryngology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2021/07/14

More Info


Hello! Thank you for your question regarding the issues related to the lingual frenulum and potential sublingual gland cysts. Based on your description, it seems you are experiencing some changes in the area of your lingual frenulum, which is the thin band of tissue that connects the underside of your tongue to the floor of your mouth.
1. Possible Issues: The small, symmetrical red bumps you observed on either side of the frenulum could be a few different things. One possibility is that they are minor irritations or inflammation, which can occur due to various reasons such as trauma from biting, friction from dental appliances, or even an allergic reaction to certain foods or dental products. Another possibility is that they could be mucoceles, which are fluid-filled cysts that can form when a salivary gland duct is blocked. These often appear as painless, swollen areas in the mouth.
Given that the redness and swelling have decreased over a few days and you are not experiencing significant discomfort, it may not be an urgent issue. However, if the symptoms persist, worsen, or if you develop additional symptoms such as pain, difficulty swallowing, or changes in taste, it would be advisable to consult a healthcare professional, preferably an ear, nose, and throat (ENT) specialist or a dentist who specializes in oral health.

2. Sublingual Gland Cysts: Regarding your concern about sublingual gland cysts, these typically present as painless swellings under the tongue. If you feel a firm, raised area that is not painful and has not changed significantly, it could be a benign condition such as a ranula (a type of mucocele that occurs specifically in the sublingual gland area). However, if you notice any changes in size, color, or if it becomes painful, it is essential to seek medical advice.
In summary, while your symptoms may not indicate a serious condition, it is always best to err on the side of caution. If you have any doubts or if the symptoms persist, seeing a healthcare provider for a thorough examination would be the best course of action. They may perform a physical examination and, if necessary, imaging studies to determine the exact nature of the swelling and provide appropriate treatment options.

In addition, maintaining good oral hygiene and avoiding irritants such as spicy foods or tobacco can help prevent further irritation in the area. If you have any other questions or concerns, feel free to ask!

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