My long haired belgian shepherd has a small (approximately 1/4" around and 1/8" high) knot on her back. It is located on the left side approximately 3" from the centerline and 6 inches forward of her tail. I suspect that it is incidental to flea bites since it came up before I cut her hair and treated for fleas. It has not gone down in about 4 weeks. There is no evidence of it being an infection (no pus or core) but it does seem tender to the touch.

