I'm glad to find a forum specific to our yorkies! I bet this patch is from the injection he got now that you guys brought that up. I remember the last round he received he was extra sore and nipped at me when I touched him-which was an unusual reaction after shots. It's not really in the place where the microchip is - its below the shoulder. I was concerned about the patch appearing suddenly. He's 6 yrs old so I wouldn't expect any changes in his hair after so long. I have seen an increase in the number of "moles" or sunspots on his skin over the last few years even though he's kept indoors except to go potty and walk.He has curly hair instead of straight- I didn't like it at first as I wanted him to have the "classic" long silky hair,but I love him so its not an issue any longer. He's really cute and his hair is unique.
