4 months baby several days do not poop, if the breastfeeding baby can be based on the baby’s spirit, the amount of milk, appropriate observation for a period of time, if the formula-fed babies or have defecation difficulties in the performance of the baby, may be the existence of functional constipation, can be through the general measures, oral medication for treatment. If the baby is exclusively breastfed, generally not prone to constipation, due to the breast milk in the food residue is small, with the baby’s age, intestinal digestion and absorption ability to enhance, it may take a few days or even ten days or so to form a stool, during the baby’s spirit, milk, sleep as usual, then parents do not need to worry too much about it, you can observe for a period of time appropriately. But if the formula-fed baby, generally 1-3 days will have a stool, or the baby appeared to hold his breath, bloating, defecation crying and other manifestations, may be a functional constipation, parents can clockwise to the baby’s abdominal massage, let the baby lie down, move limbs, can follow the doctor’s advice to use drugs such as Keselen to stimulate defecation. 4 months of age, parents can combine the feeding mode and the baby’s daily response to judgment, if necessary, timely medical consultation. The above medications should be used in accordance with medical advice.