Sore under tongue on bottom of mouth
A sore beneath the tongue may be a traumatic ulcer, a blocked salivary duct, irritation, infection, or another mouth lesion.
What might cause a sore beneath the tongue?
A sore beneath the tongue may be a traumatic ulcer, a blocked salivary duct, irritation, infection, or another mouth lesion.
How can you protect the area beneath your tongue?
Avoid rubbing the area, choose soft foods, keep the mouth clean, and check for sharp teeth or appliances that contact it. A dentist examines the lesion and may assess salivary flow, nearby teeth, lymph nodes, and other oral tissues.
When should a sore beneath the tongue be reviewed?
Arrange review if the sore lasts beyond about two weeks, keeps returning, grows, hardens, bleeds, or causes a neck lump. Rapid floor-of-mouth swelling or trouble swallowing or breathing is urgent.
What should you ask about a sore under your tongue?
Ask what structure is affected, whether trauma or a salivary duct is involved, and how long it should take to heal. Ask whether testing or referral is needed if it persists.
Frequently asked questions
What is the most important next step?
Arrange review if the sore lasts beyond about two weeks, keeps returning, grows, hardens, bleeds, or causes a neck lump.
When should this be checked?
Ask what structure is affected, whether trauma or a salivary duct is involved, and how long it should take to heal.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.