Sudden stiffness of the tongue and slurred speech may be caused by cerebrovascular lesions or traumatic tumor injury to the lingual nerve.
1. Cerebrovascular lesions: Sudden stiffness of tongue and slurred speech may be related to cerebral hemorrhage or cerebral infarction. Local hemorrhage or infarction leads to compression of nerve tissues in the brain, which may cause symptoms such as slurred speech and stiff tongue, and you need to go to the neurology department in time for examination.
2. Trauma, tumor: oral and facial trauma, tumor compression of the lingual nerve can also lead to symptoms of hard tongue and slurred speech.
Suddenly appearing tongue hardness and slurred speech need to consult a doctor in time, under the guidance of the doctor for examination and treatment, so as to avoid delaying the condition.