As I'm not sure about your medical history, not sure the possible etiologies at this time. Diabetes is a common cause. There are medicines to cut down proteinuria. Also, you should cut down your salt intake. If you have Diabetes or hypertension, you need to do good blood sugar and BP control. If you are obese, needs weight reduction. Also stop any nonsteroidal anti-inflammatory medications, if you are on. Also, needs to check your creatinine.
Hope this will help you.
Dr. Niko Lailas
Proteinuria is a marker for kidney disease and can cause progression of loss of kidney function. Do not take it lightly. Discuss with PCP and see a nephrologist for detailed assessment
Need more test like renal function test.
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Chaim Charytan, M.D.