i think its normal for a brumating dragon to poop less frequently, so long as they are not losing alot of weight.
if your dragon looks like he or she is trying to poop but cant, offer them a bit of applesauce with a drop of extra virgin olive oil mixed in. just dab it on their lips and theyll lick it off; itll lubricate their system and get it going again. ive used that trick a couple of times and it worked within hours. LG likes to go outside to do his business, something about the sun and warm cement...
what has he been eating lately, any veggies?
last time he went, was the urate(white part of poop) hard or soft? whats the temperature like under the basking/UV-B lights?
its probably nothing to worry about, but let us know how it goes :wink: .
p.s. try to find the "no sugar added" apple-sauce if possible.