dirty medical needle tip. blood in canal not sterile used syringe. unsanitary injections and infection risk. morphinism drug addic

addic addiction background black blood bloody canal care channel closeup contrast dirty disgusting doctor drug equipment glossy health hospital infection injections line macro medical medicine metal microscope microscopic morphinism needle repulsive research risk safety sharp shiny spike steel sterile super syringe therapy tools treatment unpleasant unsanitary used vile warning with