K.T.
Hand, foot, and mouth disease can cause little bumps on the tongue, too. There are so many things it could be when it comes to the mouth....really only your doctor will be able to tell you. My friend has been getting sores on her tongue...big nasty ones that come and go...and the 3 or 4 doctors she has been to have not been able to tell her what the exact reason is yet because there are so many possible causes