no single test can show that you have lupus. your doctor may have to run several tests and study your medical history. the doctor will look for rashes and other signs that something is wrong. blood and urine may be done and samples often show if your immune system is overactive. a biopsy tissue that is removed by a minor surgical procedure may be examined under a microscope. skin or kidney tissue examined in this way can show signs of an autoimmune disease.
how do you find out if you have lupus?