Figuratively, it can refer to a scar or reminder of past violence or wrongdoing.
अतीत की हिंसा या गलतियों की यादगार
English Usage: The bloodstain of betrayal lingered in their relationship.
Hindi Usage: धोखे का खून का धब्बा उनके रिश्ते में बना रहा।
khun ka dhabba, khoon ka dhabha, khoon ka dhabba, khoon ka dabbha, khun ka dabbha