Many children experience frequent blinking, which is a very common eye symptom. The cause of this symptom is usually the presence of some irritating factor in the eye. In children, common causes include keratitis, conjunctivitis, refractive error, eye fatigue, conjunctival calculi, and impingement, all of which may lead to frequent blinking in children. Therefore, if your child has this symptom, you should take your child to the hospital as soon as possible to improve the relevant examination, and only when the specific cause is clear can you choose the correct treatment. If it is a local inflammation, such as conjunctivitis or keratitis, local anti-inflammatory treatment can be given. If it is eye strain or refractive error, glasses are needed and reasonable eye habits should be maintained. In the case of conjunctival stones or corneal foreign bodies, conjunctival stone removal or foreign body removal is required. In the case of impingement, surgery is also necessary to correct it if necessary.