Children always rubbing their eyes may lead to eye foreign body damage, may cause infectious inflammation, corneal damage and other hazards. 1. Foreign body damage: If children always rub their eyes, it is easy to bring all kinds of foreign bodies into the eyes, which will wear out the eyes and cause damage to the eye surface. 2. Infectious inflammation: when children rub their eyes, it is easy to bring bacteria into their eyes, resulting in infectious inflammation of the conjunctiva, which leads to conjunctival congestion, edema, papillary hyperplasia and follicle formation and other discomforts. 3. Corneal damage: children frequently rub their eyes, if the force is not appropriate, may also cause corneal damage, resulting in keratitis, which in turn causes dry eyes, burning sensation, increased secretion and other discomforts. Parents should avoid letting small children rub their eyes with their hands to prevent adverse effects on the eyes, and go to the ophthalmology department to avoid delaying the condition.