What is the cause of numbness in the mouth and tongue?

There are many causes of tongue tingling, mostly related to impaired blood circulation and local nerve damage.
It can be seen in ischemic cerebrovascular disease, cervical spondylosis, burning mouth syndrome, etc.
Some foods can also cause transient numbness of the tongue, such as pineapple and kiwi.
Long-term smoking and alcohol consumption can cause numbness of the tongue.
Eating food that is too hot and burns the mouth can cause numbness of the tongue, and spicy and irritating food can also cause numbness of the tongue.

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