Patients with red, swollen eyes and thick discharge, mostly caused by eye inflammation, such as bacterial infection and viral infection. 1. Bacterial eye infections: Bacterial infection of eye tissues can lead to bacterial conjunctivitis, dacryocystitis, etc. Under the stimulation of inflammation, patients may have red, swollen eyes, increased secretions and other symptoms of discomfort, the secretions are usually thick, and the patient’s eyes may also have a foreign body sensation and burning sensation and other manifestations. 2. Viral eye infections: When patients’ eye tissues are infected with adenovirus, enterovirus, herpes simplex virus and other viruses, viral conjunctivitis can be triggered, which can lead to symptoms such as itching, tearing and fear of light in the eyes, and also cause conjunctival congestion and increased secretion, but the secretion is mostly watery, and not as thick as that of bacterial infections. It is recommended that patients with red, swollen eyes and thick discharges consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.