Generally do not appear eyelid itch, should consult the doctor to find out the cause, may be caused by excessive use of the eyes, may also be the manifestation of certain diseases, such as allergic conjunctivitis, dry eye and other pathological factors. 1. If the itchy eyelids are caused by overuse of the eyes, you need to pay attention to rest, and if it returns to normal after rest, you don’t need to worry too much; if it doesn’t get better after resting or continues to aggravate, then you need to pay attention to it, and be alert that it’s caused by a disease, and you need to consult a doctor in time. 2. Pathologic factors: (1) allergic conjunctivitis: this disease is caused by allergen conjunctival inflammation, is a common eye surface disease, occurring in spring, fall and other pollen concentration of high season, pollen, willow, dust, cosmetics, skin care products, drugs, etc. are more common causes of allergies, resulting in itchy eyelid symptoms, usually accompanied by redness, swelling, tearing and other symptoms. (2) Dry eye: dry eye, also known as corneal conjunctival dryness, mainly manifested as dry eyes, foreign body sensation, blurred vision and visual fatigue, etc., some patients will also appear eyeball congestion, photophobia, eye itching, increased secretion and other symptoms. There are many reasons for eyelid itching, patients should first ensure adequate rest to avoid eye fatigue. If physiological causes are ruled out, the patient should consult a doctor to determine the cause of the problem and, if necessary, undergo appropriate treatment.