In children, lobar pneumonia does not usually lead to bronchiectasis. Lobar pneumonia is an infection of the lungs by one or more pathogens and inflammation of lung tissue in more than one lung segment. Lobar pneumonia is usually caused by Streptococcus pneumoniae infection. Typical symptoms are sudden onset of high fever accompanied by cough, rust-colored sputum, chest pain and generalized muscle aches. However, with the popularity of antibiotics, clinical symptoms are often atypical. The etiology of pediatric bronchiectasis may be related to measles and whooping cough infection, etc. Simple lobar pneumonia does not usually lead to bronchiectasis. Its clinical symptoms are cough, coughing up pus sputum, hemoptysis and other manifestations. High-resolution CT can be used to make a clear diagnosis. Therefore, lobar pneumonia in children usually does not lead to bronchiectasis. Children with these problems should go to the pediatric department of the hospital in time and be treated under the guidance of the doctor.