A child’s constant rubbing of the eyes may be caused by visual fatigue, granuloma, conjunctivitis and other causes. 1. Visual fatigue: when children watch cell phones, computers and other electronic products for a long time, it may cause visual fatigue leading to eye swelling and pain, eyelid weakness and so on, which will cause the situation of always rubbing the eyes. 2. Eyelids: acute suppurative inflammation of the eyelid glands, mostly caused by staphylococcal infections, the main clinical symptoms of redness, swelling, heat, hardness and pressure pain in the affected area, etc., which may cause children to rub their eyes all the time due to ocular discomfort. 3. Conjunctivitis: it is an inflammatory disease that occurs in the conjunctiva, mostly caused by pathogen infection, external stimuli, etc. The patient may have symptoms such as photophobia and tearing, foreign body sensation in the eyes, etc. The child’s constant rubbing of the eyes may be caused by conjunctivitis. It is recommended that patients seek timely medical examination, clear causes for targeted treatment, pay attention to eye care in life, avoid excessive eye use, and follow the doctor’s instructions for regular review.