Question
What causes facial paralysis?
Answer
The causes of facial neuritis can be generally categorized into central facial paralysis and peripheral facial paralysis. Central facial paralysis is mainly caused by cerebrovascular diseases, intracranial lesions, trauma, and inflammation. Peripheral facial paralysis is most commonly due to viral infections, which often have preceding symptoms of viral infection. It also includes metabolic diseases, tumors, trauma, and long-term exposure to toxins.