I only have one chinchilla and I have not had him very long, so I am not very experienced with these things. I have a male chinchilla and his two pink testicles have always been visible, but i recently noticed that above them to the left and right of his penis there seems to be two swollen glands under the fur. I do not know if it has always been like this and I never noticed, or if something is wrong. I have checked for fur rings and there are none. He seems to be acting completely normal otherwise though. Is there something wrong? Should I take him to a vet?