We adopted Sharky from the shelter about two weeks ago and had him checked out by a vet. I asked the vet to check his neuter site (he was neutered at the pound) because it felt like they left something in there. He said it was very swollen, so he couldn't say, but that he hoped they had taken everything out. Well now the swelling has gone down and I definitely feel something in there. It feels like one testicle was left in there. And also they said they used glue to seal the incision, but now there is a string coming out of the area. I pulled on it because I thought it was just a string from the carpet or something and was stuck on the outside, but it is definitely firmly attached. It doesn't look like stitching material either, it looks kinda like kite string. Is there anything else this can be inside there beside a remaining testicle? And what is with this string? I am going to call the vets office and see if I can speak with the vet tomorrow, but what else could this be? It was a vet who performed the surgery at the shelter, so why would she leave one in there? This is very strange to me, anyone else ever hear of this? If she did leave one in there, will they have to go back in? Any advice appreciated.