Eight-month-old baby diarrhea needs to be treated according to the cause, can be under the guidance of the doctor to take medication, such as probiotics, montelukast, antibiotics, etc., necessary to give rehydration therapy. During the treatment, pay attention to drink more water, pay attention to abdominal warmth. Common causes of diarrhea in babies include: indigestion, viral enteritis, bacterial enteritis, etc. 1. Indigestion: the stool will be accompanied by milk petals or undigested food residues. If the symptoms are mild, it can be improved by drinking more water, applying hot compresses on the abdomen, and eating a light and easy-to-digest diet. If the frequency of diarrhea is high, you can take probiotic drugs, such as bifidobacteria, bacillus subtilis and so on to regulate the intestinal flora, with the help of digestive drugs, such as multi-enzyme tablets treatment. 2. Viral enteritis: most common in rotavirus, occurring in autumn and winter, diarrhea is more frequent, dilute water eggdrop soup-like. Viral infections usually heal on their own and do not require special treatment. 3. Bacterial enteritis: mostly accompanied by fever symptoms, stool containing mucus, this time you need to give sensitive antibiotic treatment, such as cephalosporins. During the baby’s diarrhea, to give the baby more water to avoid dehydration, if there are symptoms of dehydration, you can give the baby oral rehydration salts, if necessary, infusion treatment. Note that when taking drugs must be under the guidance of the doctor, avoid self-medication for the baby.