Whether nephritis is hereditary or not depends on the type of nephritis. Primary nephritis, secondary nephritis, etc. are usually not hereditary, but hereditary nephritis can be hereditary. 1. Primary nephritis: it refers to nephritis syndrome caused by unknown reasons, and the common causative factors are infection, exertion, drugs and so on. It is usually not hereditary. 2. Secondary nephritis: such as lupus nephritis, purpuric nephritis, etc., often caused by the primary disease involving the kidneys and affecting renal function, most of them are not hereditary, but their primary disease is caused by the tendency of heredity. 3. Hereditary nephritis, also known as Alport syndrome, is caused by mutations in the main gene encoding the glomerular basement membrane, and is mainly manifested by hematuria and progressive reduction of renal function. Most of the lesions can be hereditary because they are genetic mutations; in addition, polycystic kidney and thin basement membrane nephropathy belong to the category of hereditary diseases. If you have nephritis, you should go to the hospital in time to find out the cause of the disease and follow the doctor’s instructions.