Bumps on the back of the tongue is a normal condition until there are any signs of infections. You need to consult with a dentist when it grows large or exists long. For more info visit: https://www.suryadentalcare.com/blisters-on-the-back-of-the-tongue-symptoms-treatments-and-causes/ https://www.suryadentalcare.com/blisters-on-the-back-of-the-tongue-symptoms-treatments-and-causes/