Baby diarrhea can be determined by the baby’s symptoms, the nature of the stool and the stool laboratory tests to determine whether it is caused by a bacterial infection. If your baby’s diarrhea is caused by bacterial infection, most of the symptoms will be fever, abdominal pain, diarrhea, and discomfort (discomfort in the lower abdomen, wanting to relieve the stool, and a feeling of incomplete bowel movement after the bowel movement), etc. When these uncomfortable symptoms occur, it is necessary to consider that it is caused by a bacterial infection. If your baby has mucus stools or mucus-pus-blood stools, it is more likely to be caused by bacterial infection. If your baby’s diarrhea has more white blood cells, or is accompanied by red blood cells or even pus balls, or if the stool culture suggests that there are bacteria, it is considered that the diarrhea is caused by a bacterial infection. Therefore, when the baby diarrhea appeared in the above situation, you need to bring your baby to the hospital pediatrics in time, under the guidance of the physician to give sensitive antibiotics for anti-infection treatment, in order to achieve better results.