Symptoms of constipation in newborns?

Patient's question:

In the first few days after birth, the baby's bowel movements were relatively normal. Later, it became two days before a bowel movement, and now it's three or four days. During bowel movements, the baby shows a lot of pain, with symptoms of abdominal distension. The baby also cries abnormally, one of the symptoms being difficulty passing stool in a newborn?

Doctor's answer:

Symptoms of Newborn Constipation in the Early Stage
If a newborn baby exhibits the following conditions, mothers should pay attention to whether the baby may be suffering from constipation. The stool is infrequent, dry, difficult to pass, and accompanied by pain during defecation. Abdominal distension and pain, decreased appetite.
In clinical practice, if a child's bowel movement interval exceeds 48 hours, it can be considered as constipation. Some infants, shortly after birth, experience bowel irregularities.