1. Causes of renal dysfunction (1) Primary renal disease (2)Renal injury secondary to systemic diseases 1)Circulatory system diseases: Shock, As, thrombosis, etc 2) Auto-immune and connective tissue diseases: Lupus nephritis renal injury by rheumatoid arthritis, etc 3)Metabolic diseases: Nephropathy caused by amyloidosis, diabetic or hyperuricemia 4)Hematological diseases: Renal injury by plasmacyte disease multiple myeloma or leukemia 5)Others: Heart failure, hepatic disease, endocrine disease and malignant tumors8 1. Causes of renal dysfunction (1) Primary renal disease (2) Renal injury secondary to systemic diseases . 1) Circulatory system diseases: 2) Auto-immune and connective tissue diseases: 3) Metabolic diseases: 4) Hematological diseases: 5) Others: Shock, AS, thrombosis, etc. Lupus nephritis, renal injury by rheumatoid arthritis, etc Nephropathy caused by amyloidosis, diabetic or hyperuricemia Renal injury by plasmacyte disease, multiple myeloma or leukemia Heart failure, hepatic disease, endocrine disease and malignant tumors