Level 1: Causes and Preventive Measures of Infantile Diarrhea 1. Causes There are many reasons for infantile diarrhea. It may be infection with viruses or bacteria, improper diet or environmental changes, etc. Generally speaking, if the infant\’s diarrhea is not serious, it can be relieved by adjusting diet and living habits. 2. Preventive measures In order to prevent babies from diarrhea, we need to pay attention to the following