Sir bumps under tongue signals a minor medical condition in most cases, and points rarely towards cancer, also, a lot of times they resolve on their own, but if even after waiting for 14 days you find that they didn't go away, then it means that you need to meet a doctor (although it doesn't by itself mean tumor), for your convenience, we are linking you to our page - Ent/ Otorhinolaryngologists in India, do let us know of your progress and you can always reach out to us whenever you feel confused!