If he doesn't poop in a day or two, try feeding him a bit of veggie oil mixed with applesauce, and then give him a nice warm
bath. Massage their belly from shoulder to vent.
Lots of dragons swallow things like hair accidentally, so I wouldn't warrent a vet visit over thread. If the
bath/laxatives doesn't work after a few tries, then a vet trip.
And most of the 6 year olds I know are still going once a day or once every other. O.O Do you
bathe him every other day or so?