White blood cells (WBCs) are destroyed in the lymphatic system. They have a lifespan of 12-20 days. Once their lifespan is complete, they are destroyed in the lymphatic system.
The lymphatic system is a network of vessels, tissues, and organs that helps to filter waste products from the body, fight infection, and maintain fluid balance.
The destruction of old or damaged WBCs is a normal part of the body's immune response. The process helps to ensure that the immune system is functioning properly and that there are enough healthy WBCs available to fight infection.