The causes of constant jumping of the left lower eyelid include physiological factors such as overwork and staying up late, and pathologic factors such as facial neuritis, meningioma, and auditory neuroma. Eyelid jumping, also known as blepharospasm, is a kind of unexplained, involuntary spasm and twitching of muscles in the innervated area of facial nerve. 1. Physiological factors: when the human body is overworked, excessive late night, mental tension and other factors, the phenomenon of left lower eyelid always jumping can occur, such phenomenon is a normal physiological phenomenon, without special treatment, after a period of time can be improved by itself. 2. Pathological factors: Facial neuritis, meningioma, acoustic neuroma and other diseases can damage or compress the facial nerve, thus the phenomenon of eyelid always jumping. It can be improved by treating related diseases. It is suggested that patients should go to the hospital in time, clarify the cause of the disease, and standardize the treatment under the guidance of physicians.