Pediatric acute laryngitis is generally considered to be an infection, with viral infections being most common, accounting for about 80% of cases. This includes respiratory syncytial virus, influenza virus, parainfluenza virus, and Coxsackievirus, all of which can cause acute laryngitis. Of course, there are also cases caused by bacterial infections, with gram-positive bacteria being more common. Additionally, special circumstances such as procedures, gastroscopy, bronchoscopy, etc., can cause laryngeal injuries, or the ingestion of irritant food items might also damage the laryngeal tissues, subsequently leading to symptoms of laryngitis.