Seven months baby diarrhea may be caused with gastrointestinal dysfunction, indigestion, intestinal infections, etc., can be adjusted through diet, medication. 1. Gastrointestinal dysfunction: seven months baby gastrointestinal function is not sound, easy to diarrhea, you can give the baby to use drugs to regulate gastrointestinal, such as bacillus subtilis bacillus granules and other probiotic drugs. 2. indigestion: seven months old baby has generally added complementary foods, if the baby at one time eat too much or intolerance of complementary foods, may lead to indigestion diarrhea, you can give the baby pause complementary foods or a small amount of add, at the same time can be taken orally probiotics such as bacillus subtilis bacillus granules to regulate the intestinal flora. 3. Intestinal infection: If the intestinal tract is bacterial. Viral infection, there will also be diarrhea, such as bacterial infection, according to the drug allergy selection application of antibacterial drugs, such as cefixime. If the viral infection, generally rotavirus infection is common, mainly symptomatic treatment, you can give the baby the use of oral rehydration salts to prevent dehydration, but also oral montelukast to stop diarrhea. It is recommended that seven-month-old babies with diarrhea, strengthen the baby’s care, go to the hospital in a timely manner, under the guidance of the doctor’s treatment. The above drugs need to be used in accordance with medical advice.