Children with yellow nasal discharge and yellow eye boogers are mainly related to respiratory tract infections, dacryocystitis, conjunctivitis and other diseases, it is recommended that further examination to clarify the cause of the disease, so as not to miss the condition. 1. Respiratory tract infection: due to various viruses or bacteria invade the respiratory tract organs, causing infection, runny nose, accompanied by yellow color and other substances, serious cases will cause inflammation of the eyes, resulting in yellow pus-like eye boogers. 2. Dacryocystitis: The narrowing or blockage of the nasolacrimal duct due to various reasons, which causes tearing, increase in the amount of eye droppings and yellow pus, and in severe cases, it also causes coughing, runny nose accompanied by yellow substances, fever and other symptoms. 3. Conjunctivitis: Inflammation of the small blood vessels in the conjunctiva due to a variety of reasons, causing an increase in eye droppings and yellow pus, sticky, and in severe cases, coughing, yellow snot phenomenon. Children with yellow snot and yellow eye boogers may also have other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.