The redness of the corners of the eyes of patients may be caused by physiological reasons, such as crying, staying up all night, etc., and may also be related to pathological reasons, such as conjunctivitis, dacryoblepharitis, blepharitis and so on. 1. Physiological reasons: if the patient stays up late or cries for a long time and rubs his eyes, it can lead to redness at the corners of the eyes, which can also be accompanied by dryness and soreness of the eyes and other uncomfortable symptoms. 2. Pathological causes: conjunctivitis, blepharitis, blepharitis and other ocular inflammation patients in the inflammatory stimulation, can appear in the corner of the eye redness and swelling, can also be accompanied by eye itching, pain, increased secretion, photophobia and other uncomfortable symptoms. In addition, eye trauma patients due to impact, bump, etc. can also appear in the corner of the eye red and swollen, can also be accompanied by eye pain and other uncomfortable symptoms. It is recommended that patients with significant redness and swelling of the corners of the eyes seek medical attention to evaluate their condition and follow the doctor’s instructions for treatment.