What is the cause of membranous nephropathy?

The etiology of idiopathic membranous nephropathy is not clear, the mainstream view that a large number of proteinuria may be associated with abnormal signal conduction between foot cells; secondary membranous nephropathy common causes of infection systemic autoimmune disease tumor drugs.

1. Infection can be secondary to bacterial virus or parasite infection, such as hepatitis B virus hepatitis C virus human immunodeficiency virus Helicobacter pylori syphilis schistosomiasis infection.

2. Systemic autoimmune disease can be secondary to a variety of systemic autoimmune diseases, such as systemic lupus erythematosus rheumatoid arthritis chronic lymphocytic thyroiditis sarcoidosis Sjogren's syndrome.

3. Tumors are more common in malignant lymphoma and solid tumors.

4. Drugs take certain drugs, such as penicillamine tiopronin non-steroidal anti-inflammatory drugs and captopril, etc., may also be secondary membranous nephropathy.