Sunday, March 19, 2017
An autoimmune disease develops when your immune system, which defends your body against disease, decides your healthy cells are foreign. As a result, your immune system attacks healthy cells. Depending on the type, an autoimmune disease can affect one or many different types of body tissue.
What are the symptoms of an overactive immune system?
Autoimmune diseases, sometimes called inflammatory diseases, are also caused by an overactive immune system that is out-of-balance. For example, when the immune system attacks the body's joints, the result is rheumatoid arthritis (RA).
What is an immune system disorder?
Immune system disorders cause abnormally low activity or over activity of the immune system. In cases of immune system over activity, the body attacks and damages its own tissues (autoimmune diseases). Immune deficiency diseases decrease the body's ability to fight invaders, causing vulnerability to infections