My 15 1/2 year old son has numbness on his tongue. half of his tongue is normal in color/half has a white coat and very dry. water is not helping. there is some numbness but no fever. what could it be?

I : I agree with dr. Zweig, this might be a nerve problem that should be attended to. Go see an oral surgeon.

You : You should go and see a neurologist immediately, unilateral lingual numbness could be a sign of a tumor on the brain or a growth pressing on one of the cranial nerves. It is very unusual. Keep your dentist informed. Good luck, dr neilo mcleod dds dentistry that lasts - quality that counts.

This : This sounds very unusual and i think you should have him seen by a dentist or oral medicaine specialist as soon as you can.