About a month ago, I found a little bump on Jimmy's back right between his shoulder blades, and I thought it was a tick and I removed it, but then when I did that, I realized I didn't think it was a tick, and it just left a little open wound on his back. So, we left it alone, and now its totally back, and I don't want to mess with it because I don't know what it is. I don't understand how it could be a scab because its right between his shoulder blades, and he's an only dog, and we don't play rough with him, so how could he have a sore there? And, I'm also wondering if it could be from his microchip? We got him fixed and microchipped about 5 months ago, and don't they put the microchip right between their shoulders?