What is the primary reason for not using tourniquets on wounds in the head or neck?

The primary reason for not using tourniquets on wounds in the head or neck is that they can cause further injury. Tourniquets are designed to control severe bleeding by constricting blood flow; however, applying one to the head or neck could exacerbate damage to critical structures such as arteries, veins, and nerves. In these areas, a tourniquet might increase intracranial pressure or lead to the potential for more serious complications, such as loss of function or even death, due to the delicate nature of the tissues involved.

Additionally, the anatomy of the head and neck is complex, with vital structures closely packed. Applying a tourniquet improperly could lead to significant collateral damage beyond the injury itself. It is crucial to manage bleeding in these regions using alternative techniques that prioritize maintaining blood flow to the brain and other essential areas, focusing instead on direct pressure and other methods deemed appropriate for such injuries.