The cellular pathology of inflammation

Inflammation is the body's response to injury or infection, involving immune cells and chemicals that work together to heal tissue. When tissues are damaged, blood vessels widen to allow immune cells like white blood cells to reach the area. These cells remove harmful agents and dead tissue, releasing substances that cause redness, swelling, heat, and pain. This process helps protect the body, but can also cause discomfort. Inflammation can be acute (short-term) or chronic (long-lasting), and its cellular pathology involves complex interactions between immune cells, blood vessels, and signaling molecules aimed at restoring tissue health.