Infection and inflammation are two common medical conditions that can cause a variety of symptoms. Though they are often confused or used interchangeably, they are actually very different. Understanding the differences between infection and inflammation is important for properly diagnosing and treating these conditions. This article will discuss the differences between infection and inflammation.

What Is Infection?

An infection occurs when a pathogen, such as a virus, bacterium, parasite, or fungus, enters the body and multiplies. Pathogens can enter the body through direct contact with an infected individual, contact with contaminated objects, or through insect or animal bites. Infections can cause a variety of symptoms depending on the type of pathogen and the severity of the infection. Common symptoms of infection may include fever, chills, fatigue, and muscle aches.

What Is Inflammation?

Inflammation is the body’s response to injury or infection. When the body senses a foreign invader, such as a virus or bacteria, it triggers an immune response which causes inflammation. During this process, the body releases white blood cells, proteins, and other substances in order to fight off the intruder. This causes the affected area to become red, warm, swollen, and painful.