Redness and pain in the corner of the patient’s eye and other discomfort symptoms may be related to trauma to the corner of the eye, may also be due to blepharitis, blepharitis and other causes. 1. Eye trauma: If the corner of the eye is accidentally struck by an external force, it may cause redness and pain at the corner of the eye, and may also be accompanied by localized bruising, swelling and other discomforts. 2. Blepharitis: Blepharitis refers to suppurative inflammation of the eyelid glands. Under the stimulation of inflammation, patients may experience redness and pain at the corners of the eyes, accompanied by redness and swelling of the eyelids, tearing and other discomforts. 3. Blepharitis: long-term unhygienic eye use, visual fatigue and other reasons can cause blepharitis, in the continuous stimulation of inflammatory products, patients may appear in the corner of the eye redness, pain, but also with eye itching, swelling and other discomforts. It is recommended that children with obvious discomfort such as redness and pain at the corners of the eyes should seek prompt medical attention to assess their condition and follow the doctor’s instructions for treatment.