What is lupus?
Lupus is a chronic autoimmune disease that can damage any part of the body (skin, joints, and/or organs). "Chronic" means that the signs and symptoms tend to last longer than six weeks and often for many years.
In lupus, something goes wrong with the immune system, which is the part of the body that fights off viruses, bacteria, and germs ("foreign invaders," like the flu). Normally our immune systems produce proteins called "antibodies" which protect the body from these invaders.
"Autoimmunity" means your immune system cannot tell the difference between these foreign invaders and your body’s healthy tissues ("auto" means "self"). As a result, it creates autoantibodies that attack and destroy healthy tissue.
These autoantibodies cause inflammation, pain, and damage in various parts of the body.
people around the world are affected by the disease.
new cases of lupus are reported each year.
Additional facts about lupus that you should know:
- Lupus is not contagious, not even through sexual contact. You cannot "catch" lupus from someone or "give" lupus to someone.
- Lupus is not like or related to cancer. Cancer is a condition of malignant, abnormal tissues that grow rapidly and spread into surrounding tissues. Lupus is an autoimmune disease, as described above. However, some treatments for lupus may include immunosuppressant drugs that are also used in chemotherapy.
- Lupus is not like or related to HIV (Human Immune Deficiency Virus) or AIDS (Acquired Immune Deficiency Syndrome). In HIV or AIDS the immune system is underactive; in lupus, the immune system is overactive.
- Lupus can range from mild to life-threatening and should always be treated by a doctor. With good medical care, most people with lupus can lead a full life.
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