Is it normal for a three-month-old baby to have a bowel movement once every other day?

Generally speaking, whether it is normal for a three-month-old baby to have a bowel movement every other day depends on the baby's specific physical condition. If the baby has a bowel movement every other day without showing any signs of discomfort, it is usually considered normal. However, if the baby experiences discomfort along with this pattern, it may be abnormal. In case of any discomfort, timely medical consultation is recommended for professional evaluation and treatment under a doctor's guidance. Detailed explanations are as follows:

Since breast milk is easily digested, some breastfed three-month-old babies may defecate daily, while others may only pass stool once every two days or even longer—a phenomenon known as "stool accumulation." As long as the baby is in good spirits, shows no symptoms such as abdominal bloating or vomiting, and gains weight normally, this frequency of bowel movements can be regarded as normal.

If a three-month-old baby shows obvious signs of discomfort during bowel movements—such as crying, straining, or passing dry, hard, pellet-like stools—it may indicate constipation. Chronic constipation can not only affect the baby's comfort but may also impair nutrient absorption and weight gain.

If the baby shows any signs of discomfort or abnormal growth and development, prompt medical evaluation and treatment are advised.