We all have this experience in the usual, for the performance of the eyelids have been jumping, or left eye or right eye, and then will say that the left eye jumping wealth, right eye jumping disaster statement, in fact, this statement is very unscientific, because there may also be some disease precursors. What is the reason for the left eyelid jumping? 1, overworked Stay up late to sleep and other causes of insomnia and lack of rest. Or work too tired, excessive consumption of physical health, resulting in multiple fatigue, etc. can cause the left eyelid jumping. 2, tension When the body is tense, such as before the examination, mental stress, the brain does not get enough rest, can lead to the left eyelid jumping. 3, disease Eye diseases such as myopia, farsightedness, astigmatism, conjunctivitis, keratitis …… can cause the left eyelid jumping. A few left eyelid jumping may also be triggered by intracranial tumors, cysts or inflammatory adhesions pressing on the facial nerve. In addition to this, some people have intracranial nerves compressed by curved blood vessels when they are young, but do not have abnormal sensation. In middle and old age, the increased blood pressure and hardening of the arteries cause the blood vessels to strike the nerves during powerful pulsations, thus causing the left eyelid to throb. There is also Chinese medicine that blood deficiency may also cause the left eyelid to jump. 4, improper use of the eyes long hours on the computer, resulting in dry eyes, excessive use of the eyes, the left eyelid jumping frequency is also higher. 5, external stimulation Under the stimulation of strong light, drugs, foreign objects, can also cause the left eyelid jumping. In addition, smoking and drinking can also stimulate the eyes and cause the left eyelid to jump. What diseases does the left eyelid jumping indicate? In modern medicine, the fluttering of the eyelids is known as blepharospasm or blepharospasm, which is mainly caused by a disturbance of the vegetative nerves and the affected fibrous part of the orbicularis oculi muscle of the eyelid. The common left eyelid flutter can be divided into two types: physiological and pathological, and the former is usually predominant, usually occurring when there is excessive eye use, excessive stress, excessive smoking and drinking. The pathological left eyelid flutter can be caused by refractive error (myopia, hyperopia, astigmatism, etc.), intraocular foreign body, impingement, conjunctivitis, keratitis, etc. The episodes are more frequent, long-lasting and have a large fluttering amplitude. In addition to the throbbing of the eyelids, in severe cases, the eyebrows, forehead, corners of the mouth and even half of the face may be twitched together. In particular, 99% of the left eyelid fluttering caused by facial muscle spasm is due to the facial nerve that governs the movement of eyelid muscles being stimulated by abnormal intracranial vascular compression, and 1% is due to intracranial tumors and arachnoid adhesions stimulating the facial nerve, so it is also regarded as a sign of intracranial diseases. The left eyelid jumping and good and bad things are not related, the left eyelid jumping may be a disease omen, may also be caused by eye fatigue, once the frequent left eyelid jumping that must be timely medical consultation to identify the cause oh, usually also pay attention to eye, pay attention to rest.