In spring and autumn, we often see a lot of parents complaining about their children blinking frequently, rubbing their eyes, squeezing their eyes, and making funny faces. Usually, children who know how to behave become naughty all of a sudden, and they can’t stop. In fact, this is not a child “change”, but he is “sick”! Since children have poor self-expression, they often cannot express their discomfort accurately, so it is necessary to go to the hospital for investigation. The clinical appearance of these symptoms is common in the following cases: 1. Allergic conjunctivitis: the most common. How can I be identified? Children with allergic conjunctivitis often have the following characteristics: a they are allergic b they have itchy eyes combined with allergic rhinitis c they have a clear history of allergen exposure: they have been to the park, they have been exposed to willow pollen, etc. d they have recurrent episodes, they had them last spring and fall, and they have them again this year in the spring and fall. If your child has the above characteristics, it may be allergic conjunctivitis 2, bacterial or viral conjunctivitis: children often have red eyes, yellow or thick secretions 3, inverted eyelashes: the lighter children like to rub their eyes, teary eyes, the heavier children have red eyes, accompanied by secretions Moms can check themselves at home to see if the child’s eyelashes are inverted to the cornea (black eye) 4, pediatric Tic disorder: mostly occurs in young boys, manifested as blinking, squeezing eyebrows, showing teeth, making strange faces, shrugging shoulders, turning neck, nodding head, twisting torso, shaking arms or kicking feet, lower limb twitching, etc., which increases when emotionally stressed and decreases when mentally concentrated, requiring pediatric diagnosis.