Lupus is a disease that occurs when your body's immune system attacks your own tissues and organs (autoimmune disease).
Inflammation caused by lupus can affect many different body systems including your joints, skin, kidneys, blood cells, brain, heart and lungs.
Lupus is a long-term autoimmune disease in which the body's immune system becomes hyperactive and attacks normal, healthy tissue.
Symptoms include inflammation, swelling, and damage to the joints, skin, kidneys, blood, heart, and lungs.