Inflammation of the throat in infants can be caused by viral infections, bacterial infections, and inhalation of dust and smoke. 1. Viral infections: Viral infections can cause throat inflammation in infants. Common viruses that infect the human body and cause throat inflammation include coxsackie virus, adenovirus, influenza virus, parainfluenza virus, rhinovirus, measles virus, and so on. 2. Bacterial infections: Infantile throat inflammation can also be caused by bacterial infections, hemolytic streptococcus, streptococcus pneumoniae, staphylococcus aureus, staphylococcus epidermidis, haemophilus influenzae, and other bacterial infections can also lead to inflammation of the throat. 3. Inhalation of dust, smoke: winter and spring climate change, inhalation of dust, smoke, irritating gases, and hazy weather, will have a negative impact on the defense function of the child’s respiratory mucosa, which can lead to the symptoms of inflammation of the baby’s throat. If an infant develops symptoms of throat inflammation, it is recommended to consult a doctor promptly to identify the cause and ask the doctor to deal with it.