Lupus — also referred to as systemic lupus erythematosus — is a chronic autoimmune disease that causes your immune system to attack your own body’s healthy cells and tissues. Over time, inflammation caused by the disease takes a toll on your vital organs and systems, including your skin, joints, kidneys, heart, lungs, central nervous system and blood vessels.
There is no specific test to detect lupus and symptoms tend to come and go in varying degrees of severity. Because of this, it can sometimes take months or even years to diagnose.