1-2 months baby spit bubble most of the normal physiological phenomenon, but also may be respiratory tract infection, pneumonia and other factors related to the specific analysis is as follows: 1. physiological phenomenon: some babies in 1-2 months will appear to spit up the bubble situation, mainly oral saliva secretion is too much, too late to swallow led to, this situation is a normal physiological phenomenon, no special treatment. 2. Disease factors: the baby appeared the above symptoms, if also accompanied by difficulty in eating milk, cough, nasal congestion, depressed mental state, fever, etc., may be related to respiratory tract infections or pneumonia, need to go to the hospital for further relevant examinations. 1-2 month old babies spit up bubbles, there may be other reasons, it is recommended to go to the hospital in time for relevant examination, clear cause of the disease after active symptomatic treatment.