What is the primary cause of inflammation in the body?

The primary cause of inflammation in the body is a response to infection or injury. Inflammation serves as an essential part of the body's immune response, acting as a mechanism to protect and heal tissues. When pathogens like bacteria or viruses invade the body, or when tissues are damaged due to physical injury, the immune system triggers an inflammatory response. This process includes the release of various signaling molecules, increased blood flow to the affected area, and the recruitment of immune cells to help attack pathogens and facilitate healing.

While natural healing processes and genetic predispositions can influence inflammation levels and responses, they are not the primary triggers of inflammation. Similarly, while some medications can lead to inflammation as a side effect, the root cause of inflammation is typically the body's immediate reaction to external harm or threat. Understanding this helps to distinguish the fundamental reasons behind inflammatory responses in the body.