There are several possible causes for a child’s frequent blinking: i. there is a real discomfort in the eye, such as trachoma, conjunctival stones, visual fatigue, impingement, dry eye, chronic conjunctival inflammation, etc., ii. the child cannot see clearly, such as refractive errors like myopia and astigmatism, iii. lead poisoning or lack of trace elements, iv. neurological disorders. When a child has symptoms, parents should first take the child to the ophthalmology department to receive relevant examinations. After slit lamp examination, fundus and visual acuity examination, the cause of the disease will be clarified and targeted treatment will be carried out. For example, trachoma and conjunctivitis can be treated with antibiotic eye drops; dry eyes and visual fatigue can be treated with artificial tears to relieve the discomfort of dryness, itchiness and foreign body sensation in the eyes, and to change bad eye habits and avoid fatigue; if there is impingement, it can be removed, electrolyzed or surgically corrected; if there is refractive error, it can be corrected by optometry and glasses; if the child blinks frequently along with other behavioral or personality abnormalities, it may be If a child has frequent blinking with other behavioral or personality abnormalities, it may be due to lead poisoning or a lack of trace elements, so the child’s eating habits should be corrected to avoid partial eating, and those with severe lead overload should be given lead removal treatment. In conclusion, there are many reasons why children blink frequently, and parents should not be overly anxious while paying attention to their children’s blinking symptoms, which may cause their own anxiety to pass on to their children and cause their children to become tense, resulting in long-term symptoms that cannot be relieved. Parents should take their children to the hospital in a timely manner to confirm the diagnosis and trust the doctor and scientific treatment, as most children can be cured with comprehensive treatment.