Most common LMN cause of Facial nerve palsy is?: (A) Trauma, (B) Bell's palsy, (C) Infections, (D) Vascular causes
Answer is B. *one of the most common cause of facial weakness is bell's palsy ,a lower motor neuron lesion of the 7th (facial)nerve ,effecting all ages and both sexes *here the lesion is within the facial canal . Ref Harrison20th editionpg 1082-1083