There is no definitive test for SLE Lupus (Systemic Lupus Erythematosus) as of this writing. Around the world there are multiple standards for diagnosing Lupus, but they all, more or less, come down to this list.

The medical institutes who establish diagnostic standards say that, you probably have Lupus if you have two or more of these symptoms plus a positive ANA (antinuclear antibodies) blood test, OR if you have four or more of these symptoms with no other reason for them.

1. Malar rash -- a rash over nose and cheeks. Sometimes referred to as a "butterfly rash" or a "wolf mask" (hence "lupus")
2. Discoid rash -- round, coin-sized, lesions on your skin, particularly skin exposed to sun.
3. Photosensitivity -- exposure to sunlight causes inflammation and Lupus flares. "Allergic to the sun".
4. Oral or nasal ulcers -- sores in your mouth and/or nose, with or without pain.
5. Arthritis -- non-erosive swelling of any joints. This arthritis only counts if swelling is present
6. Serositis -- inflammation of the tissue that surrounds your heart or your lungs.
7. Renal (kidney) disorder -- found with blood and urine tests.
8. Neurological disorder -- a giant bag of possibilities: headaches and/or dizziness, memory problems, seizures, or psychosis (mental disorders, including some forms of depression).
9. Blood (hematological) disorders -- including low counts for any type of blood cell. In Lupus, these disorders are caused by antibodies attacking any of the blood cell types.
10. Immunological disorders -- any of the long and growing list of autoimmune diseases.
11. Positive ANA test -- aka, abnormal ANA titer. This test looks for antinuclear antibodies (ANA). These are the antibodies that attack your own cells. This is as close as we get to a "test for Lupus" when combined more than one of the other symptoms above.