I have a bruise on my lumbar spine that hasn t gone away in months...it s bigger than a silver dollar, but not in any shape, it s just blob like and it s not very dark. Its normally painless, but now it s somewhat tender and a second bruise has developed (not dark either, and a bit smaller) an a couple inches or so under it, around the bottom of my lumbar vertebrae . They are on the left side of my spine about an away from it.