Dog's breath smells like metal?

10 yr old lab, had a dental and epilus removal about 5 months ago. Had his spleen removed Feb 2021, has been borderline anemic since. I don't see any bleeding from his mouth and he doesn't appear in pain. Is this worth a vet visit?

Hello.  I'm not sure how definitely 'metallic' the metallic smell is, but David Harris writes about a few of the possibilities here. https://vethelpdirect.com/vetblog/2016/02/04/sometimes-its-not-teeth-other-causes-of-bad-breath-in-pets/ (sorry - you may have to cut and paste this link.  Otherwise, just type "causes of bad breath" into the blog search-bar). Chronic anaemia, caused by the absence of a spleen, doesn't usually cause a metallic smell from the mouth.  It sounds likely that there is something else going on.  Some of the options may be rather serious, so the proposed vet appointment, sooner rather than later, sounds to be an excellent idea.