Definition

Inflammation is a process through which the immune system protects the body from infections and foreign substances such as bacteria and viruses. When inflammation occurs, chemicals from the white blood cells are released into the blood or affected tissues in an attempt to rid the body of pathogens. This release of chemicals increases the blood flow to the area and may result in redness and warmth. Some of the chemicals cause leakage of fluid into the tissues, resulting in swelling and pain. Inflammation is a nonspecific immune response that aids healing and is usually resolved acutely. However, inflammation is implicated in a number of conditions where the inflammatory response is chronic. Diseases generally associated with inflammation are rheumatoid arthritis, atherosclerosis, asthma, tendonitis, bursitis, polymyalgia rheumatica, and autoimmune disorders. There are a number of treatment options for inflammatory diseases including medications, rest and exercise, and surgery to correct joint damage.