A one-month-old baby’s foamy poop may be caused by physiological reasons, gastrointestinal dysfunction, acute gastroenteritis, etc., and can be improved through general treatment, medication and other methods. 1. physiological reasons: due to one month baby is relatively small, digestion and absorption capacity is relatively poor, if eating, swallowed a lot of air, may appear to pull foam poop situation, this is a normal phenomenon, generally do not need special treatment, can be relieved by hot compresses on the abdomen, can be relieved. 2. Gastrointestinal dysfunction: one month baby gastrointestinal function is weak, if too much milk or milk traits change, may cause gastrointestinal dysfunction, the phenomenon of foamy poop, accompanied by abdominal distension, abdominal pain and other discomforts. You can help restore the balance of intestinal flora and relieve the symptoms by giving your baby oral probiotics such as Bacillus subtilis bacillus granules and other medications. 3. Acute gastroenteritis: When the baby suffers from acute gastroenteritis, it will easily lead to gas-producing bacteria in the intestine, causing an inflammatory reaction in the intestine and the appearance of foamy stool. You can regulate the intestinal flora through the Clostridium typhimurium live bacterial powder, bacillus subtilis bifidus live bacterial granules and other drugs, but also oral antibacterial drugs such as cefixime to fight infection. When a one-month-old baby pulls foamy poop, parents should immediately take the baby to the hospital, improve the examination to clarify the cause of the disease, and then actively treat it. The above drugs need to be used in accordance with medical advice.