Originally posted by luckies4me
Are you sure you did not mistake this rat for another? If it is indeed the same rat then I would take him to the vet. If he had testicles before and he has sucked them up, he is either sick or extremely stressed out. Again, I believe it's a doe. You can FOR SURE know if it's a male but pushing on the urethra, if a penis pops out then well, there's your answer.
I'm sure that I didn't mistake him for one lol. There were only three. I may have mixed them up a few times, but they assured me that they were all males. I'm sure I saw all testicles (lol, this conversation sounds weird ).