The causes of recurrent bronchial asthma in babies include allergic factors, respiratory infections and low immunity, etc. It is necessary to find out the causes in time and give symptomatic adjustment or medication. 1. Allergic factors: Because babies often come into contact with allergenic substances or allergic environments, such as dust, dust mites and pollen, etc., which triggers recurrent attacks of bronchial asthma. 2. Respiratory infections: because the baby’s respiratory system is not yet fully developed, when stimulated by cold, respiratory infections are likely to occur, triggering recurrent episodes of the original bronchial asthma. 3. low immunity: because the baby’s body is not well developed, the body’s immunity is relatively low, when stimulated by adverse factors can easily lead to recurrent attacks of bronchial asthma. There may be other reasons for the recurrent attacks of bronchial asthma in babies, it is recommended to consult a doctor in time, improve the examination, and if necessary, cooperate with the doctor to take appropriate measures or treatment.