Blinking eyes may be caused by bad habits, or by diseases such as impingement or conjunctivitis. 1. Bad habits: children watch TV, computer or cell phone for a long time, causing dry eyes and other discomforts, the child will blink to relieve the discomfort; or the child may be imitating certain things, thus attracting the attention of parents. If not accompanied by other symptoms of discomfort, is a normal phenomenon, parents should encourage their children to do more outdoor activities, to correct their bad habits and develop good eye habits. 2. Inverted eyelashes: Inverted eyelashes may be caused by factors such as redness of the lower eyelid and congenital inversion of the eyelid. The symptoms are tearing, photophobia, persistent foreign body sensation, etc. Due to long-term stimulation of the conjunctiva by the eyelashes, the child may blink frequently. It can also be accompanied by vision loss and even blindness. 3. Conjunctivitis: Conjunctivitis has many causes, which may be caused by immunopathy, chemical stimulation, tear duct blockage, microbial infection and other factors. Symptoms such as redness, dryness, foreign body sensation and tearing of the eyes can occur, which is manifested by the child’s love of blinking. There are many causes of blinking, so parents are advised to bring their children to regular hospitals in time to find out the cause of the disease.