3 months of the baby 3 days did not poop may be insufficient milk intake, gastrointestinal dysfunction, etc., can be increased by increasing the amount of milk, oral medication and other treatments. 1. Insufficient milk intake: 3 months baby 3 days did not poop may be due to insufficient milk intake, with the baby’s digestive function is gradually improved, if you have not been to the baby to increase the amount of or increase the amount to meet the body’s needs, there may be a food residue is too small not poop situation. It is usually recommended to add the baby’s milk in small quantities as appropriate. 2. Gastrointestinal dysfunction: due to cold stimulation, improper feeding and other conditions caused by gastrointestinal dysfunction may also make the 3-month-old baby appeared 3 days without stool, it is recommended that the use of bifidobacteria and other probiotic treatment, if necessary, can be used to help defecation Kai Sei Nou to help. 3. Normal: If the baby is breastfed, 3 days without stool, if no bloating, crying and other discomfort, the general situation is good, you can continue to observe. If the 3-month-old baby 3 days without poop symptoms continue to not relieve, or with other symptoms, should be timely consultation, in the doctor’s help targeted treatment. All of the above medication should be used under the guidance of a doctor, avoid self-medication.