The symptoms of acute bronchitis in children mainly include upper respiratory tract infection symptoms such as nasal congestion and systemic symptoms such as fever. 1. Symptoms of upper respiratory tract infection: Most of them are the initial symptoms of most children, which are nasal congestion, runny nose, cough, headache and so on. With the development of the disease, cough can be the main symptom, the beginning of a dry cough, followed by sputum. In infants and young children, sputum is not easy to cough up on its own, and phlegm sounds can be heard in the throat or lungs. 2. Systemic symptoms: common in younger children, especially infants and young children. The symptoms include fever, fatigue, vomiting and diarrhea. 3. Other: such as allergic children, easy to develop bronchial asthma or asthmatic bronchitis, thus appearing wheezing, shortness of breath, chest tightness and other symptoms. There are more symptoms of acute bronchitis in children, so if you feel unwell, it is recommended that you seek prompt medical attention and treatment.