I've been diagnosed with henoch shonlien purpura nephritis. what is this?

Here are some...: Henoch-Shonlien purpura nephritis may be a part of HSP (Henoth-Shonlien purpura) involving the kidneys with some 5% of such affected may show renal functional impairment but only some !% progress to renal failure. HSP is a form of generalized inflammation of small vessels inclining to affect subcutaneous tissues, joints, GI tract, kidneys, even central nerve system. More? Ask Doctors timely.