What are the etiologies of chronic nephritis?

Chronic glomerulonephritis is caused by a variety of reasons primary glomerular a group of similar clinical manifestations and pathological changes of different autoimmune disease, the prognosis is not the same, with proteinuria, hematuria, edema, high blood pressure, tube type of urine and may have decreased renal function for its clinical features.The disease along with the development of the disease, renal failure scorpion will eventually appear, is the cause of end-stage renal disease (ESRD) is the most common.Statistics show that in the treatment of patients with ESRD, primary disease for patients with glomerular diseases (51%), lead to the cause of ESRD in China is given priority to with glomerular disease, accounting for 54.4%, including chronic glomerulonephritis (45.2%).The cause of most chronic nephritis is unclear, due to the more acute nephritis in delay after streptococcus pneumoniae infection, history of more than 1 year or years clinical symptoms appeared after recovery, patients with chronic nephritis onset hidden, though at the beginning of no obvious clinical symptoms, but in the slow development of kidney disease change, when the infection or overwork after onset of symptoms, according to research may be related to long-term, chronic, hide the infection such as bacteria, mold, protozoa, and worms and viruses, especially hepatitis b virus infections;There are individual was produced by non immune factors, such as gene and drug, heavy metal, chemicals and radiation, harmful gas contact, may be associated with the onset of chronic nephritis.