Lingual Frenulum: Is That Soft Tissue Normal?

Frenulum under the tongue?

Hello Doctor: Recently, I noticed a string-like protrusion under my tongue.
It feels very soft to the touch and can be moved freely, almost like a piece of skin, and it does not hurt when pressed.
Is this normal? Thank you! Actual photo: https://imgur.com/a/3SAFWMi

Azhang, 30~39 year old female. Ask Date: 2022/09/27

Dr. Zheng Jueyi reply Otolaryngology

Hello, it is common to have normal small salivary gland protrusions.
If there are symptoms or concerns about abnormalities, it is advisable to visit an otolaryngologist for examination and confirmation.

Reply Date: 2022/09/27

More Info

The soft tissue you are referring to under your tongue is known as the lingual frenulum. This is a normal anatomical structure that connects the underside of your tongue to the floor of your mouth. It is composed of mucous membrane and connective tissue, and its primary function is to help stabilize the tongue during movement.
In most individuals, the lingual frenulum is not only normal but also plays a crucial role in oral functions such as speaking, swallowing, and eating. The appearance of the frenulum can vary from person to person; some may have a more pronounced frenulum, while others may have a less noticeable one.
The fact that you describe it as soft, flexible, and painless upon touch suggests that it is likely within the normal range of variation. However, if you notice any changes in color, texture, or if you experience pain, swelling, or difficulty moving your tongue, it may warrant further evaluation by a healthcare professional.
In some cases, individuals may have a condition known as "ankyloglossia," commonly referred to as tongue-tie, where the frenulum is shorter than usual, potentially restricting tongue movement. This can lead to difficulties with breastfeeding in infants, speech issues in children, and other oral health problems. If you suspect that your frenulum is unusually short or if you are experiencing any functional difficulties, it would be advisable to consult with a dentist or an ear, nose, and throat (ENT) specialist for a thorough assessment.

In summary, the soft tissue you are feeling is likely the lingual frenulum, which is a normal part of your anatomy. As long as it is not causing you any discomfort or functional issues, there is generally no cause for concern. However, if you have any doubts or if symptoms develop, seeking medical advice is always a prudent choice. Regular dental check-ups can also help monitor any changes in your oral health, including the condition of your frenulum and surrounding tissues.

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