In daily life, mild, occasional eyelid fluttering is very common, and there are many causes of eyelid fluttering. Some of them are simply caused by fatigue, lack of sleep or stress, food or medication stimulation. (4) The range of the fluttering is relatively certain, and it is always limited to the fluttering of the eyelid and does not spread to the cheeks or corners of the mouth. For this kind of eyelid jumping, most of them will improve on their own in a few days by reducing stress, avoiding irritation, and taking regular rest and relaxation. Some eyelid jumping is caused by inflammation or other lesions in the eyes, and the discomfort is always limited to the area around the eyelids, without the tendency to expand to other parts of the face, such as myopia, farsightedness, conjunctivitis, keratitis and other causes of eyelid jumping, which requires an ophthalmologist. If the eyelid jumping is prolonged and gradually expands to the corners of the mouth or even the neck, and the degree of facial jumping gradually increases, it may be a precursor of some facial nerve diseases, the most common of which is facial spasm. 94% of facial muscle spasms start with eyelid fluttering, as the saying goes, “the left eye jumps for money, the right eye jumps for disaster”, so it is generally not easy to attract people’s attention. After a while, if it develops into eyes open, mouth twitching, serious even the neck also involuntarily twitching, until the whole half of the face is not good, this is not just eyelid jumping. Facial muscle spasm is a disease in which the range of facial jumping gradually expands and the discomfort gradually worsens. In the early stage of the patient’s illness, facial myospasm and simple eyelid fluttering are not very easy to distinguish, and the doctor will mostly instruct the patient to observe for a period of time, and then review after three months. After three months, if the eyelid fluttering disappears on its own, there is no need for special attention; if it is only limited to eyelid discomfort, you should see an ophthalmologist for the symptom; but if the range of fluttering is significantly expanded and the symptoms are aggravated, it is likely to be facial myospasm, and you should go to a neurologist as soon as possible. It should be reminded that facial muscle spasm is not an inflammation or trauma of the skin or muscles, and will not lead to symptoms such as edema, heat and redness or pain on the face. So if a patient has facial twitching along with redness, swelling, heat, or pain in the skin, it is time to look into other causes. Likewise, the disease itself does not affect functions such as vision, hearing, or eating. Some patients may feel that their vision is diminished, mostly because their eyelids keep twitching and they can’t keep their eyes open, so it affects seeing things.