Facial paralysis is a facial disorder that occurs at all ages and often makes the patient psychologically sensitive. According to experts, facial paralysis is clinically divided into many different types, and these different types occur due to different factors. So, what are the types of facial paralysis? What are the causes? Causes of traumatic facial paralysis 1, mechanical injury: mechanical injury is an important cause of traumatic facial paralysis, often due to compression injury, sharp cuts, blunt friction injuries, acute and chronic crush injuries, traction injuries and other causes of facial paralysis, so the prevention of this kind of facial paralysis, we need to prevent and treat the cause of the disease and the symptoms of the specific treatment. 2, chemical injury: chemical injury can also lead to traumatic facial paralysis, mainly refers to toxic substances on the nerve damage, but also includes long-term exposure to toxic substances, facial nerve distribution of neurotoxic drugs, such as penicillin, botulinum toxin, alcohol and other drugs caused by injection of traumatic facial paralysis. 3.Physical injury: electric burn injury, radioactive injury, laser injury, freezing injury, thermal injury and other physical injuries are the causes of traumatic facial paralysis, then we should try our best to avoid these causes of facial paralysis in our life, and we should pay attention to the treatment of facial paralysis according to the different causes of targeted treatment. 4.Medical injury: There are many forms of facial paralysis caused by medical injury, which requires that no matter what disease is being treated, it should be treated in a regular hospital. Causes of otogenic facial paralysis 1, tympanoplasty, mastoidectomy and stapes surgery, especially microtia and atresia surgery, in the event that there are abnormal cords and bars of tissue, raised bony structures and granulation in the pathway of the facial nerve, etc., it is not advisable to scrape them off easily, and they should be dealt with after the exclusion of the facial nerve tissues, or else they will cause facial paralysis very easily. 2, cholesteatoma and osteomyelitis destroy the facial nerve bony tube, facial nerve inflammation and necrosis, granulation proliferation, mistaken for inflammatory granulation and be scraped, especially the horizontal semicircular canal has a fistula, mostly accompanied by the destruction of the facial nerve. Particular care should be taken when scraping the granulation, preferably under the supervision of a neuromonitor. Care should also be taken when performing tympanoplasty for external auditory atresia and microtia. This is one of the causes of otogenic facial paralysis. 3, acute and chronic otitis media facial paralysis: acute otitis media caused by facial paralysis, mostly due to pediatric congenital facial nerve osteochondral dehiscence, suppurative inflammation invasion, so that the nerve occurs due to congestion and edema. If antibiotic treatment or tympanic membrane incision and drainage can be carried out in time, facial paralysis can be recovered quickly. Chronic otitis media is caused by destruction of osteomyelitis and destruction of the bony canal due to cholesteatoma compression, which exposes the facial nerve and results in partial or complete necrosis and dissection, and should be treated with lesion removal and nerve repair or transplantation. This is also the cause of otogenic facial paralysis. 4.During surgery for ear diseases, due to unfamiliar anatomy, inexperience and careless operation, it is also very easy to damage the facial nerve, resulting in peripheral facial paralysis. Causes of peripheral facial paralysis 1, viral infection. Viral infection is only the third cause of peripheral facial paralysis, with only 18.7% of the patients having signs of viral infection from 2 weeks before the onset of the disease to 7 days after the onset of the disease. 2. Excessive fatigue. More than one-fifth of the patients with peripheral facial paralysis had a history of excessive fatigue a few days before the onset of the disease, which ranked second. It is worth noting that as the pace of life accelerates and competition becomes more and more intense, people need to face pressure from work, study, socialization, family life and other aspects. One in ten patients with peripheral facial paralysis admitted that they had encountered psychological events they could not cope with before they got sick, such as changing jobs, illness of relatives and friends, family crisis and so on, which is also one of the reasons for triggering peripheral facial paralysis. 3. Cold. According to the survey, 53% of the peripheral facial paralysis patients had been stimulated by cold wind and cold water on the affected side of the head before the onset of the disease, which was ranked as the first cause of peripheral facial paralysis. This indicates that microcirculatory disorders of the facial nerve play a dominant role in the onset of peripheral facial paralysis. Many patients are in physical activity after a sweat, in order to figure a moment of pain, with a fan or air conditioning to the head straight blowing, do not know that at this time the body’s resistance is at its lowest point, the cold behind the nerve of the blood vessels spasm, resulting in ischemia and edema of the facial nerve and triggered by the cause of peripheral facial paralysis. Experts said that there are many ways to treat facial paralysis clinically, and the use of surgical treatment is more common. The above is a brief introduction about what causes different types of facial paralysis, hope it can help you. In addition, surgical treatment for facial paralysis should also be based on your own situation to choose the program, do not blindly treatment.