Tethered proliferative glomerulonephritis may be IgA nephropathy. Mesangial proliferative glomerulonephritis is a pathomorphologic diagnosis of nephritis based on light microscopy, a group of glomerular diseases characterized by diffuse glomerular mesangial cell proliferation and varying degrees of mesangial stroma increase. Thylakoid proliferative glomerulonephritis is categorized into primary and secondary, and in its primary classification, it can be divided into two categories based on the classification of deposits and immunopathology: IgA nephropathy (predominantly IgA deposits) and non-IgA nephropathy, i.e., IgA nephropathy belongs to the category of thylakoid proliferative glomerulonephritis. Therefore, thylakoid proliferative glomerulonephritis may be IgA nephropathy. However, thylakoid proliferative glomerulonephritis can also be seen in nephrotic syndrome, chronic nephritis, etc. It is recommended that patients go to regular hospitals in time, and standardize the treatment under the guidance of doctors.