A one-month-old baby’s poop is watery, which may be caused by abdominal cold, improper feeding, enteritis and other factors, it is recommended that the patient promptly do the relevant examinations to clarify the diagnosis and give appropriate treatment. 1. Abdominal cold: It may be that the baby sleeps with the abdomen exposed, leading to abdominal cold, thus causing the watery stool, accompanied by abdominal pain and other symptoms. It is recommended that parents should pay more attention to the baby’s abdomen to keep warm, and live in the room to maintain the appropriate temperature and humidity. 2. Improper feeding: If the child is breastfed, the mother may have eaten too greasy, cold and other stimulating foods, which can easily lead to watery stools, it is recommended that the mother’s diet should be light, and you can drink some millet porridge, pumpkin porridge and so on. 3. Enteritis: generally caused by viral and bacterial infections and other conditions, if viral infections, generally can be self-cured, do not need special medication; if combined with bacterial infections, need to eat amoxicillin and other antibiotics. Go to the hospital in time for relevant examinations. All of the above medications should be used under the guidance of a doctor to avoid self-medication. In addition, parents are advised to pay attention to the diet of young children, pay attention to warmth, breastfeeding should avoid spicy and other stimulating foods, so as not to cause discomfort to young children.