Assertion: purpura's disease | /r/Causes | purpura
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text: Some vascular diseases that affect collagen in the body, such as lupus, rheumatoid arthritis, and Sjogren’s syndrome, can also cause purpura.
text: renal function tests to eliminate renal diseases that cause purpura Doctors may also do a test called a punch biopsy to check the skin and blood cultures.
text: Renal function tests (RFTs) to evaluate renal status in the polyarteritis nodosa, SLE, Henosh-Schonlein purpura, and many other diseases causing purpura