Facial nerve microcirculation disorder: The survey results showed that 53% of the patients had been stimulated by cold wind and cold water on the affected side of the head before the onset of the disease, ranking first in the list of causative factors. 2, life factors: more than 20% of the patients had a history of excessive fatigue in the days before the onset of the disease. In addition, mental and psychological stress, emotional depression or drastic changes, excessive exercise, and irregular sleep are also causative factors. 3, viral infection: infectious lesions are mostly caused by herpes zoster that is latent in the dormant state within the sensory ganglion of the facial nerve being activated. In addition, meningitis, mumps, influenza, scarlet fever, malaria, multiple cranial neuritis, and local infections can be caused. These are the common causes of peripheral facial palsy. Therefore, it is necessary for patients with facial palsy to understand the factors that lead to the disease, change their life pattern and actively prevent and treat the disease. Therefore, it is necessary for patients with facial palsy to understand the factors that lead to the disease, to make targeted changes in their lifestyle, and to actively prevent and treat the disease to reduce the chance of reoccurrence.