This may be more of a cultural thing.. My sister who doesn't yet have kids asked me if I plan to use one on LO. I had forgotten all about it but instantly remembered that growing up they always placed them on my younger siblings and cousins. It's basically a band that goes around the baby's waist to prevent the belly button from popping out (outtie). During our parenting classes we were told the cord stump shouldn't be covered so I know how that conversation with doc is going to go.
My sister swears that two of her friends didn't do it with their first born and they now have ugly belly buttons whereas they did with the second child and their belly buttons are much nicer.
Any thoughts or experience with this?