Facial palsy, also known as facial nerve palsy, can be divided into central and peripheral depending on the location of its onset, and is mainly characterized by facial nerve dysfunction on one or both sides. The forehead wrinkles disappear, the eye fissures widen, tears overflow, and the nasolabial folds are flattened. The sick side cannot make movements such as frowning, frowning, closing the eyes, puffing and pouting. Air leakage when puffing cheeks and whistling. When eating, food residue is often retained in the gap between the teeth and cheeks on the sick side, and saliva often flows down from that side. Patients usually choose neurology and acupuncture for consultation at this time. In fact, facial palsy should be seen in otology, why is this? 1. Anatomical characteristics of the facial nerve The facial nerve is composed of three nuclei. The three groups of fibers are mixed and go out of the lower edge of the pontine brain, accompanied by the auditory nerve to the internal auditory canal, through the facial nerve canal at the base; bend forward in the middle ear tympanic chamber, and finally go vertically downward out of the stem mammary foramen; go forward into the parotid gland in the soft tissue, and then divide into five branches (temporal branch, zygomatic branch, buccal branch, mandibular margin branch, cervical branch), shaped like a goose’s palm, and distributed forward in a fan shape in the various muscles of the same face. It can be seen that the temporal segment of facial nerve is the longest and adjacent to the auditory nerve, vagus, middle ear and parotid gland, so facial nerve lesion is one of the key research objects in otology. 2.Common causes of facial palsy Herpes zoster virus infection of the auricle; otogenic diseases (purulent otitis media, cholesteatoma otitis media, etc.); tumors in the lateral skull base pontocerebellar horn area; neurogenic lesions of the facial nerve itself; temporal bone fractures, medically induced facial nerve injuries, etc.; all require close relationship with otology. 3.Characteristics of ear neurosurgery Ear neurosurgery is an important branch of otolaryngology. Otologists have rich knowledge of facial nerve. They can clarify the causes of all types of facial nerve lesions and formulate scientific and reasonable treatment plans. Here experts remind everyone that facial palsy with ear pain, tinnitus, hearing loss, vertigo, headache, unstable walking, pus flowing from the ear canal, middle ear surgery, etc. should be seen in otology in a timely manner.