Streak?: most likely its from trauma or fungal, however if you are a tobacco user it might be precancerous. If it doesn't go away in 1 week after mouth rinsing with lister one see you dentist or oral surgeon and get it biopsied
Answered 5/4/2015
2.9k views
Too vague and: We don't have enough information, a photo or the ability to see what you see. Therefore we really can't be of much help in telling you exactly what it is or if there should be any concern. Please see your own dentist for a definitive diagnosis. Merely listing a number of possibilities would only be a disservice to you and not very beneficial.
Answered 9/30/2016
2.9k views
See a dentist first: Some conditions like "steak under tongue" may require further assessment; tests and your dentist may schedule a follow-up appointment or refer you to a specialist to determine a diagnosis. See your dentist first for evaluation.
Answered 5/5/2015
2.9k views
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