Dog with 1 testicle. Any experience with this?

[jandk]

My neighbor surrendered a little maltese to me. I noticed after he was groomed that he only has 1 testicle back there. She found him last year as a stray and sais he is a few years old according to the vet. I sent her a text and told her but she has not responded. When I took him to the groomer they said he had only been groomed 1 time by them and that his rabies vaccination expires next year. I asked if they had a vet listed for him but they do not. I was hoping to call them to see if they had any info for him. I have never had a male dog so this is new to me. I am going to call my vet monday for an appointment. I am worried about him being so small. I weighed him and he is only 6lbs. Maybe that is normal for a dog of his breed. I am use to my 70lb girls Has anyone had a dog with this and what did you have done? 

[Deleted]

Your dog should be neutered as soon as you can. It sounds like he has an undescended testicle. An undescended testicle can lead to health complications, including a higher risk for cancer. He also may still be fertile even if he only has one descended testicle. As for his size, I have no idea what the appropriate weight for his breed would be.

[Waffles]

Our friends have a dog that had only one testicle. The story I heard (he's getting old now, and I wasn't there early on) is that they took him to get him neutered, and they only found one. I believe he is a spitz mix, so not sure about how it may or may not have affected things for him. He has been doing just fine though