Well...

It just passed away, during my third soaking attempt.

I don't know if it's an indication of the cause of all this, but there was a moderate amount of bloody discharge that seems to have come from its mouth. I'm guessing the swelling itself could have caused the internal bleeding by crushing the poor frog's organs, though.

Must have been a horrible way to die. It was probably in pain for the past two days, at least.

Fk

Anyway, I'd like to thank all of you for your help.

Do you have any idea what the cause might be? Or which one is the most likely? I'd like to avoid something like this happening again.

Is my husbandry at fault? Could it be organ failure due to old age? (It's hard to tell but I don't think it has grown much since I got it, so it could have been closer to 4-5 years in age, which would be old for a N. leopard frog.) A mix of both?

So many questions... Was the bloating the cause of the constipation or the constipation the cause of the bloating? Was it all caused by bacteria, internal blockage, kidney failure, or something else? And more... I'm guessing most of them can't be answered without a visit to a vet.

P.S. Cory, I'm assuming that when you rub the flank clockwise, its relative to the frog standing right side up, but which way should it be facing? (Are you rubbing back toward the rear end when your finger is on the frog's back or on its belly?