Pediatric bronchopneumonia infusion for seven days and fever again may be caused by incomplete treatment, may also be due to the emergence of pleural effusion, lung abscess and other complications. 1. Incomplete treatment: pediatric bronchopneumonia is usually caused by bacterial viruses and other pathogenic microbial infections, incomplete treatment, inflammation has not recovered may appear again fever symptoms. 2. pleural effusion: pediatric bronchopneumonia is more serious, inflammatory exudate more body can not be absorbed will lead to pleural effusion, the child appeared high fever does not go away, dyspnea aggravated and other symptoms. 3. Lung abscess: purulent infection caused by bacteria such as Staphylococcus aureus, leading to the emergence of pus cavities in the lung parenchyma, the child may have fever, may also be accompanied by loss of appetite, weight loss, purulent sputum and other clinical manifestations. There are many factors that lead to pediatric bronchopneumonia infusion for seven days and fever, it is recommended to go to the hospital in time to check, under the guidance of the physician to carry out the relevant treatment.