What does it mean when a deep red purple bruise comes and goes same spot and shape?

Small bleeder: You may have a small vessel that's been bleeding repeatedly. If it's a solitary bruise, it's not likely to mean much. If you're taking Aspirin products, that will contribute to the ease of bruising, but is not necessarily a reason to stop aspirin. If you think the bruise is originating from a deeper structure such as a lumpy place within muscle, and it persists, get checked out.