Facial nerve palsy, also known as facial nerve paralysis, facial neuritis, Bell’s palsy, Hunter’s syndrome, commonly known as “crooked mouth”, “crooked mouth”, “hanging line wind”, “crooked mouth wind”, “facial neuritis”, “crooked mouth wind”, etc., is a common disease characterized by dysfunction of facial expression muscles, “It is a common disease characterized by the dysfunction of the motor function of the facial expression muscles. The following is an introduction to the static examination content of facial lines disappearance. Stem mastoid: check whether the stem mastoid is painful or whether one side of the temporal region or face is painful. Forehead: check whether the forehead skin wrinkles are the same, become lighter or disappear, and whether the outer side of the eyebrows are symmetrical and sagging. Eyes: Check the size of the eye fissures, whether both sides are symmetrical, become smaller or larger, whether the upper eyelid is droopy, 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 lacrimation, dryness, acidity, and swelling. Ear: Check for tinnitus, stuffy ears, and hearing loss. Cheeks: Check whether the nasolabial folds become shallow, disappear or deepen. Whether the cheeks are symmetrical, flat, thickened or twitchy. Whether the face feels tight, stiff, numb or atrophied. Mouth: check whether the corners of the mouth are symmetrical, drooping, lifting or twitching; whether the lips are swollen and whether the human middle is skewed. Tongue: check whether the sense of taste is involved.