Children with cough have high airway reactivity, and laryngeal spasm and bronchospasm are prone to occur after anesthesia, which is very dangerous once it happens.

Also, in the case of upper respiratory tract infection, general anesthesia drugs will cause an increase in airway secretions, which will bring great trouble to intraoperative and postoperative management and may also lead to suffocation.

It is safe for children to have surgery one week after the respiratory infection is completely cured.