Whether membranous nephropathy will affect the life expectancy needs to be judged according to the patient’s specific situation, if the patient’s condition is mild and timely treatment, generally will not affect the life expectancy. If the patient’s condition is severe or not treated in time, it may affect the life expectancy. The cause of membranous nephropathy is not clear, and it is considered to be caused by infection, autoimmune disease and other factors. The impact of membranous nephropathy on the life expectancy of patients needs to be based on the patient’s condition. If the condition of patients with membranous nephropathy is relatively mild, or if the patients have received timely and regular treatment, the life expectancy of the patients will not be jeopardized in general. If the condition of membranous nephropathy patients is relatively serious, or the treatment effect is not good due to drug resistance, and the condition progresses to renal failure or uremia, the patient’s life may be jeopardized. It is recommended that patients with membranous nephropathy should go to the hospital in time and take active treatment under the doctor’s guidance to avoid the progression of the disease and the adverse effects.