Lupus is a chronic inflammatory disease that occurs when your body's immune system attacks your own tissues and organs. Inflammation caused by lupus can affect many different body systems, including your joints, skin, kidneys, blood cells, brain, heart and lungs.
Lupus can be difficult to diagnose because its signs and symptoms often mimic those of other ailments.
The most common signs and symptoms include:
Fatigue and fever
Joint pain, stiffness and swelling
Butterfly-shaped rash on the face that covers the cheeks and bridge of the nose
See your doctor if you develop an unexplained rash, ongoing fever, persistent aching or fatigue.