Abstract:Objective To analyze the etiology and explore the factors influencing prognosis of bilateral facial paralysis. Methods A retrospective study was designed. The study participants were 33 patients with diagnosis of bilateral facial paralysis in our hospital between January 2010 to January 2016. And the correlations of gender, age, pathogenesis, hormone usage and immunoglobulin treatment with the prognosis of bilateral facial paralysis after 3 months were determined. Results Of the 33 patients with bilateral facial paralysis, 20 had Guillain-Barré syndrome, the incidence was 60.6%. The early use of hormone was positively associated with the prognosis of bilateral facial paralysis after 3 months (P < 0.05). Conclusions In most cases, bilateral facial paralysis is likely to be one or the first symptom of systemic diseases. Guillain-Barré syndrome is the most common cause. Before the diagnosis of idiopathic facial palsy, it is neccesary to finish the relevant examinations and conduct the differential diagnosis. Early use of hormone therapy may improve the prognosis of the patients.