Hi everyone, I have a question if anyone is familiar with this situation? I have 2 piggies that are 4 1/2 months old and they are twin teddies. One of the piggies since about 1 1/2 months old has a little spot on her back that is missing. My other piggy is just fine, well now 3 months later, the one piggies hair patch is a little bigger, I have thought of mites but wouldn't both of them have this problem if they did have mites? Maybe the one piggy is biting the other one and I don't see it when they are in their igloo? Just worried about my piggy... She eats, she's happy, she purrs when I hold her and pet her, just missing a some hair on her back. I don't have a whole lot of experience, so if anyone knows what I'm talking about, please feel free to write me back... thank you so much...