ObjectiveTo explore the risk factors of pulmonary complications in children with mycoplasma pneumoniae pneumonia.MethodsClinincal data of 341 children with mycoplasma pneumonia were retrospectively analyzed.Children under 2 months were divided into study group and control group according to X-ray or lung CT,the study group of children left lung sequelae in children and the control group without sequelae.Using statistical analysis methods to study the children age,sex,hot process,symptoms,signs,lung lesions,lesion type,white blood cells,erythrocyte sedimentation rate,C-reactive protein,antibiotics,gamma globulin,glucocorticoid application.ResultsAt electasis 30 cases,3 cases of bronchiectasis,bronchiolitis obliterans in 1 case.Logistic regression analysis showed that children fever ＞ 10d,pleural effusion,lesion in the right upper lung,X-ray showed a large shadow,pulmonary complications in children with pulmonary high risk of complications,including chest plot sequelae in children with lung fluid was a strong risk factor( P ＜ 0.01,OR =7.684).ConclusionChildren of fever ＞ 10d,pleural effusion,lesion in the right upper lung,X-ray showed a large shadow,pulmonary complications in children with pulmonary high risk of complications,clinical treatment should be noted.