Baby poop a little black green, may be due to diet, medication, fetal stool and abdominal cold and other non-pathological causes, may also be pathological causes, such as upper gastrointestinal bleeding, intestinal inflammation and so on. If the baby pulls black and green stool for a long time and does not relieve, it is recommended to consult a doctor in time to avoid delaying the condition. First, non-pathological causes: 1, diet: baby poop a little black and green, may be due to the recent period of time often intake of spinach, cabbage and other green vegetables caused by the vegetables contain a lot of dietary fiber, chlorophyll and vitamins, after eating due to the lack of complete digestion, resulting in the baby poop a little black and green. Generally do not need to worry too much, to be completely digested food, the symptoms can be relieved; 2, drugs: if the baby has recently taken a period of time to take pediatric ferrous sulfate syrup, compound ferric citrate amine syrup and other iron supplementation drugs, iron ions and intestinal hydrogen sulfide chemical reaction, resulting in the baby pulled a little bit of black-green poop. If the baby body does not appear other uncomfortable symptoms, generally do not need special treatment; 3, fetal stool: if the newborn, poop a little black and green is usually fetal stool. The baby in the fetal period swallowed amniotic fluid, bile and intestinal secretions caused by the normal phenomenon, generally do not need special treatment, with milk powder and breastfeeding, stool color can gradually transition to yellow; 4, abdominal cold: if you do not do a good job of abdominal warmth, but is the abdominal cold, can cause gastrointestinal dysfunction, there may also be a decline in digestive capacity, which led to the baby pulled a little bit of black-green stools. It is recommended to keep the baby’s abdomen warm, add clothes in time, you can take bacillus subtilis bacillus granules, montelukast and other drugs under the guidance of a doctor for treatment. Second, pathological causes: 1, upper gastrointestinal bleeding: generally refers to the esophagus, stomach, duodenum, pancreatic duct and biliary tract bleeding, the baby upper gastrointestinal bleeding caused by black-green stools due to the hemoglobin-containing iron, by the role of sulfide in the intestine to form iron sulfide caused. Usually, if the amount of bleeding is small, you can follow the doctor’s instructions to use growth hormone release inhibiting hormone, proton pump inhibitors and other drugs to stop bleeding treatment. When the disease is serious, but also need to be in the gastroscope for electrocoagulation hemostasis treatment; 2, enteritis: such as babies eating unclean food, resulting in rotavirus, dysentery bacillus, Candida albicans infections, thus causing enteritis. After the disease can easily lead to intestinal mucosal bleeding, edema, intestinal dysfunction, thus causing the baby to pull the stool a little dark green or black green. Usually, oral rehydration salts can be taken as prescribed by the doctor for treatment to replenish water and electrolytes in the body.