Why do are puss stink?

Pus has a distinctive odor primarily due to the presence of bacteria and the dead white blood cells that accumulate during an infection. When the body fights off an infection, the breakdown of cells and tissues can produce foul-smelling compounds. Additionally, certain types of bacteria can release waste products that contribute to the unpleasant smell. Overall, the odor is a sign of the body's immune response to an underlying issue.