What Does a Blue Line Tattoo on a Dog Mean? A Simple Guide to This Small but Important Veterinary Mark
If you’ve ever spent time closely observing dogs—whether at home, at a veterinary clinic, or while volunteering at an animal shelter—you may have noticed a subtle detail that often goes unnoticed at first. On some dogs, there appears to be a faint blue or green line along the lower belly area. It’s easy to overlook,…