The left lower eyebag always jumps generally refers to the repetitive, unconscious twitching of the left lower eyelid muscle, which may be caused by a variety of factors such as over fatigue, mental tension, dietary stimulation, eye irritation, eye diseases, etc. The main analysis is as follows: 1, over fatigue: patients are over fatigued, use their eyes for too long, lack of sleep, etc. will lead to the left lower eyebag jumping, it is recommended that patients pay attention to rest, ensure sufficient sleep, do not spend a long time on 2, mental tension: mental tension will lead to contraction of the orbicularis oculi muscle fibers, diastolic abnormalities, which will cause the left lower eye bag jumping, it is recommended that patients maintain a good state of mind, which will help improve the symptoms; 3, dietary stimulation: patients eat spicy and stimulating food, such as often drink coffee, strong tea, wine, etc., resulting in excessive excitement of the nerves, will also appear the phenomenon of the left lower eye bag jumping, it is recommended that patients Avoid eating stimulating food, diet should be light, avoid smoking and drinking, etc.; 4, eye stimulation: such as intraocular foreign body, inverted eyelashes, etc. will stimulate the eye, and then the phenomenon of left lower eye bags jumping, it is recommended that patients promptly remove intraocular foreign body and abnormal eyelashes to relieve the discomfort; 5, eye diseases: common blepharitis, conjunctivitis, lacrimal sacitis, dry eye, etc., these diseases will lead to left lower eye bags jumping. It is recommended that patients go to the hospital for examination to clarify the cause before symptomatic treatment.