How is the tongue stiff?

May lack trace elements and vitamins. I suggest you take zinc gluconate orally or take vitamin B at the same time. Be sure to drink more water. Eat more vegetables. Don't eat monosodium glutamate chicken essence, because it will increase the elimination of zinc. Because they may lead to an increase in zinc removal. Zinc deficiency will lead to this disease.

Guiding opinions:

There are many kinds of tongue numbness, mainly to check whether the nerve function is normal, such as what causes the abnormality. Try not to smoke, in addition, avoid spicy, cold, salty and other irritating foods. Things that are too hot will numb in your mouth!