7-month-old baby’s green stool can be caused by dietary factors, gastrointestinal tract dysfunction and intestinal infections, etc. It is necessary to go to the hospital in time to diagnose the cause of the disease, and then to treat the cause. Common causes 1, dietary factors: formula milk with fortification, or supplemental food with more green food, such as spinach, can lead to green in the excrement, generally no other abnormalities; 2, gastrointestinal tract dysfunction: 7-month-old babies gastrointestinal tract function is not perfect, eat too many eggs, meat and other high-protein food, easy to cause indigestion, resulting in gastrointestinal tract dysfunction, resulting in green stool; 3, intestinal Infection: Bacterial or viral infection, causing damage to the intestinal mucosa, can cause digestive and absorption malfunction, resulting in indigestion, resulting in green stools. Treatment measures: 1) take oral medication such as infant spleen san to promote appetite; 2) take oral Bacillus subtilis dibacterium pellets to regulate intestinal flora and promote gastrointestinal motility; 3) use amoxicillin, erythromycin and other medications to treat intestinal inflammation as prescribed by the doctor. Daily care pay attention to dietary hygiene, avoid cold milk and leftover milk. Pay attention to keep warm and avoid cold abdomen. Massage and apply heat to the child’s abdomen to promote gastrointestinal motility. Parents need to pay attention to the child’s physical and mental status in a timely manner. If there are uncomfortable symptoms such as mental depression, irritability, vomiting, etc., seek medical treatment in a timely manner.