Facial nerve palsy this disease still has a certain probability of disease, after suffering from human health, for people’s appearance are should be very big, at this time should be timely medical symptomatic treatment work, as soon as possible to help patients away from the hazards of the disease, the following main to give you a detailed introduction to the causes of facial nerve palsy? 1, cold. Cold is the cause of facial nerve palsy, including cold water stimulation, sleeping with the window open, driving a car window, etc., which will cause the onset of facial nerve palsy, many patients with facial nerve palsy before the onset of the problem is that the head is subjected to cold wind, cold water and other stimuli, stimulation, such as blowing an electric fan, cold water, etc., which will lead to the body of the person to appear the immunity of a relative decline. 2, colds, viral infections. After colds, viral infections, the body’s immunity is relatively reduced, and these people have a certain history of fatigue before the disease, these will lead to facial nerve palsy, it is recommended to pay attention to their own immunity to improve the work in their daily lives. 3.Relatively large fluctuations in emotions. Relatively large emotional fluctuations, also lead to facial nerve palsy, these emotional fluctuations include anger, fear, nervousness, stress, etc., it is because of these emotional reasons, plus viral infections, etc., will cause the body to suffer from facial nerve palsy disease. 4, external trauma. Temporal bone fracture, facial trauma, skull base fracture, surgery and other external trauma, will affect the nerve distribution area, at this time if the injection of drugs such as alcohol, it is easy to cause the body to suffer from facial nerve palsy this disease, so the face of external trauma, must pay attention to the treatment. The causes of facial nerve palsy are introduced above, there are many causes of facial nerve palsy, it is recommended to pay attention to the prevention of these causes in our daily life, especially should pay attention to avoid the body cold, external trauma, emotional fluctuations and so on.