Bunny mini-lop has not urinated...

Question
Bunny mini-lop has not urinated or defecated for about 15 hours.  He was in a car trip for 1 1/2 hrs. prior to this.  He is eating and drinking water and appears to be okay.  Is this cause for concern and is there something we can do for him.
Thank you for your help.

Answer
Dear Joanna,

If he's eating and drinking, he's probably okay. The stress of the car ride may have stressed him enough to cause a short bout of ileus:

www.bio.miami.edu/hare/ileus.html

...but if he's eating and drinking normally, then it's unlikely his gut is shut down.  If he does not start producing poop, then please read that article thoroughly and find a good rabbit vet here:

www.rabbit.org/vets

Hope that helps!

Dana