IgA nephropathy usually doesn't cause symptoms in the early stages, so the disease can go unnoticed for years or decades. It's sometimes suspected when routine tests reveal protein and red blood cells in your urine that can't be seen without a microscope (microscopic hematuria). IgA Signs and symptoms of IgA nephropathy include: IgA  Cola- or tea-colored urine (caused by red blood cells in the urine) Repeated episodes of cola- or tea-colored urine, and sometimes visible blood in your urine, usually during or after an upper respiratory or other infection and sometimes after strenuous exercise Foamy urine from protein leaking into your urine (proteinuria) Pain in the one or both sides of your back below your ribs Swelling (edema) in your hands and feet High blood pressure 
iga nephropathy doesn't cause symptoms early stages  disease can unnoticed years decades  it's suspected routine tests reveal protein red blood cells urine can't seen microscope (microscopic hematuria)  iga signs symptoms iga nephropathy include: iga  cola- tea-colored urine (caused red blood cells urine) repeated episodes cola- tea-colored urine  visible blood urine  upper respiratory infection strenuous exercise foamy urine protein leaking urine (proteinuria) pain sides back ribs swelling (edema) hands feet high blood pressure 
iga nephropathy