Patient: I have been suffering from allergic purpura since November 2006, and my urine test was abnormal since late December 2006. The actual urine test is abnormal due to allergic purpura, which is purpura nephritis. The degree of urine test abnormality as well as the condition should be considered for different treatment methods, but there are a few patients who have a small amount of urine red blood cells for a long time. It is recommended that you make relevant examinations for targeted treatment Shanghai Children’s Hospital, Department of Nephrology and Rheumatology, Huang Wenyan