In patients with facial nerve palsy, the cheek puffs and whistles leak air because the affected side of the mouth cannot be closed. Facial nerve palsy (facial neuritis, Bell’s palsy, Hunter’s syndrome), commonly known as “facial palsy”, “crooked mouth”, “crooked mouth”, “hanging wind” is a common disease characterized by motor dysfunction of the facial expression muscle groups, the general symptoms are crooked mouth and eyes It is a common and frequent disease, and it is not limited by age. The patient’s face is often unable to perform even the most basic movements such as raising the eyebrows, closing the eyes and puffing the mouth. Diagnosis of cheek puffing and whistling leakage: 1. Patients with cheek puffing and whistling leakage will be accompanied by the size of the eye fissure, whether the sides are symmetrical, smaller or larger, whether the upper eyelid is drooping, whether the lower eyelid is ectropion, whether the eyelid is twitching and swollen, whether the conjunctiva is congested and ulcerated, and whether there are symptoms of facial palsy such as tearing, dryness, acidity and swelling. In addition, in central facial palsy, the symptoms of this type of facial palsy mainly show that the muscles in the upper part of the face are not paralyzed, and the closed eyes and raised eyebrows and frown of the facial palsy patient are normal, but the muscles in the lower part of the face are paralyzed. In patients with facial palsy, all facial muscles on the ipsilateral side of the lesion are paralyzed, the eyelids cannot be fully closed, the corners of the mouth droop, eyebrow lifting is limited, the frontal lines become shallow or disappear, the eyebrows are lower than on the healthy side, the lid fissures become larger, tears spill out of the eyes, the corners of the mouth are pulled toward the healthy side when showing teeth or laughing, the mouth is oblique and oval, speech is not clearly pronounced, and food is held in the mouth. The symptoms of bilateral peripheral facial palsy sometimes include facial expressionlessness, disappearance of bilateral frontal lines, inability to close both eyes, shallowing of bilateral nasolabial fissures, inability to close the mouth and lips, leakage from the corners of the mouth, and slightly slurred speech. 3. In diagnosing the symptoms of facial palsy, you can see whether the forehead skin wrinkles are the same, become shallow or disappear, and whether the outer eyebrows are symmetrical and sagging. Check whether the frown muscles can move and whether the amplitude of brow movement is the same on both sides. This can also tell if you have facial palsy. When closing the eyes, you should pay attention to whether the corners of the mouth on the affected side of facial palsy have a lifting mouth movement, whether the affected side can close tightly, and the degree of closure.