Symptoms Of Membranous Nephropathy

Proteinuria

Proteinuria is a condition of the urinary system where the patient has urine containing an abnormally high amount of protein. Kidneys in a healthy individual have glomeruli or filters that effectively extract excess wastes and fluid from their blood. At the same time, essential nutrients like proteins are allowed to pass through the kidneys and return to the bloodstream. Kidneys in membranous nephropathy patients have glomeruli that do not work correctly. Usually, this reduced function of the glomeruli is caused by cellular damage. The damaged glomeruli allow more than just wastes and fluids to be filtered into the urine from the blood. Low amounts of nutrients and proteins are returned to the bloodstream as a result. The urine that contains these critical components moves through the ureters and into the bladder. When the bladder is ready to empty, the urine with the proteins and nutrients in it is excreted through the urethra. When a patient's urine contains more proteins than normal, it is called proteinuria. Proteinuria can be detected using a standard urinalysis before it causes any noticeable complications.

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