1. First, if you have basic diseases such as hypertension, diabetes, hyperlipidemia and heart disease, you should first consider whether it is a cerebral ischemic infarction caused by cerebrovascular ischemia.
2. Secondly, if you have had surgery such as tooth extraction recently and used local anesthetic, some patients will have tongue numbness. If so, the efficacy will generally ease in a few days, and it will ease in a few days. So you don't have to worry too much, but if this situation persists for a long time, I suggest you go to the neurology department for further examination.