Children with red eyes and eye boogers may be caused by conjunctivitis, dry eye, overuse of eyes and other reasons. 1. Conjunctivitis: mostly caused by microbial infection and external stimulation, due to the stimulation of inflammation, patients may have red, swollen and painful eyes, which may be accompanied by secretions. After the secretion dries up, the phenomenon of children’s eyes red with eye boogers can appear. 2. Dry eye: refers to any cause of abnormal tear quality, or abnormal kinetics resulting in decreased tear film stability. The patient may have red eyes and increased secretions, and thus the child may have red eyes with eye boogers. 3. Excessive eye use: it may be due to excessive eye fatigue caused by prolonged viewing of cell phones, computers and other electronic products. Patients may have symptoms such as eye congestion, increased secretions and foreign body sensation, which may cause the phenomenon of red eyes with eye boogers in children. Red eyes and eye boogers, after resting for a long time does not see relief, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for treatment, to avoid delaying the condition.