What causes facial paralysis with a crooked mouth?

The following may be possible causes of mouth deviation due to facial paralysis (commonly known as "face stroke"): 1. Facial nerve palsy: Damage or compression of the facial nerve can lead to impaired muscle movement in the face, resulting in symptoms such as mouth deviation and facial numbness. This may be associated with viral infections, facial surgery, or facial trauma. 2. Central facial paralysis: Related to brain lesions, this condition may result from damage to the central facial nerve pathways due to cerebral hemorrhage, cerebral infarction, or similar conditions, leading to symptoms such as mouth deviation and difficulty swallowing. 3. Excessive fatigue: Prolonged heavy physical labor or extreme fatigue may reduce the body's immunity, making the facial nerves more susceptible to external influences and triggering symptoms like mouth deviation. Patients are advised to seek prompt medical attention when experiencing such symptoms.