Diarrhea in seven-month-old babies may be caused by physiological factors or by diseases such as acute gastroenteritis. Different causes, different treatments, including home care, dietary adjustments, medication and so on. 1. Family care: let the baby rest more, keep the abdomen warm, ventilate the room, change the contaminated clothes and bedding in time. After defecation, wash the perianal area in time, and keep the local clean. 2. Dietary adjustments: when diarrhea, the baby eating or absorption is relatively small, should also continue to eat and drink. Dietary advice breast milk or baby has been familiar with the food, eat small meals, eat easy to digest food. For babies with suspected lactose intolerance, low-lactose formula or lactose-free formula should be given as prescribed by the doctor. 3. medication: pediatric diarrhea is often caused by acute gastroenteritis and other digestive disorders, can take the appropriate medication under the guidance of a professional doctor to relieve. Such as acute gastroenteritis bacterial infection, can be given antibiotics such as cefazoxime anti-infection treatment. Seven months baby diarrhea is recommended to timely medical treatment, under the guidance of a professional doctor to take corresponding measures, not private medication, in order to avoid harm to the baby.