My newborn (almost 1 mo) hasn't pooped in two days and seems to be in pain. crying and drawing his legs up. eating and peeing fine. what to do?

Glycerine: Try a glycerine suppository, and see your pediatrician today if possible. Go to the ER for any fever, vomiting, poor feeding, looks floppy, or seems dehydrated.

Normal in some: Your typical breast fed baby can have a little poo smear every feeding or one giant blowout every 7-10 days.Formula babies go more often and daily. If soft, I don't consider it constipation. Babes do lots of leg drawing and fuss for no particular reason, but the process may help push food along. As long as baby wets every 6 hours or more I would consider things within the range of normal