It is not normal for a two-month-old baby to have no bowel movement for three days, and symptoms of constipation need to be considered. Two-month-old babies normally defecate once a day or 1~2 times a day, if there is no stool for three days is not normal, there may be symptoms of constipation, pay attention to observe whether the child has abdominal distension, crying and restlessness. If there is no abnormality and no bloating, it may be due to the fact that with the perfect development of gastrointestinal function, the baby’s absorption of breastmilk is enhanced, and the interval between bowel movements is long, so you can observe for a while. If the child has abdominal distention, poor appetite, or even crying, you need to consider that there may be symptoms of gastrointestinal dysfunction, or even intestinal obstruction, and you need to go to the hospital in time. If the bowel movement time is long or even dry, you can take some probiotics (e.g. bacillus subtilis bacillus granules) to regulate the intestinal tract as prescribed by the doctor. If necessary, go to the hospital to find out the cause before treatment.