Patient's question:
Sitting at the office working, the facial muscles couldn't move. After a careful examination, it was found to be facial paralysis. What caused the facial paralysis?Doctor's answer:
Facial nerve palsy, also known as Bell's palsy, is a disease characterized primarily by the motor dysfunction of the facial expression muscle group. The causes of facial nerve palsy include several factors, which can be broadly categorized into central facial palsy and peripheral facial palsy. Central facial palsy is mainly caused by conditions such as cerebrovascular disease, intracranial lesions, trauma, and inflammation. Peripheral facial palsy is most commonly caused by viral infections, which usually have preceding symptoms of viral infection. It also includes metabolic diseases, tumors, trauma, and long-term exposure to toxic substances.