IgA nephropathy is a pathological type of chronic glomerulonephritis. The clinical manifestations of this disease are diverse, with the typical clinical presentation of IgA nephropathy being hematuria, especially visible hematuria following a cold.

However, patients may also exhibit other features, such as significant amounts of urinary protein. In some cases, this can reach the level of 3.5g in a 24-hour urine protein quantification. Patients may experience edema, such as swelling in the lower limbs, eyelids, etc. There could also be clinical presentations of high blood pressure, rapid progression of renal failure, and other symptoms.