Hi, The commonest cause of seeing proteins in urine is due to kidney disease. Positive urine proteins normally should compel evaluation of the kidney function, generally through measuring blood levels of creatinine and urea. In case these markers are readings, it might be worth considering a consultation with a kidney specialist (nephrologist). Diabetes and longstanding hypertension are commonest diseases that can affect the kidney and predispose kidneys to allow produce to pass and find themselves in the urine. However, it is also not very rare to see proteins in the urine of persons with some urinary tract infections, after doing some exercise or some meals. repeating the test is often a good option. In these circumstances, the amount of protein is generally low. High concentrations of proteins in urine deserve proper evaluation of kidney function by a nephrologist. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ivan R. Rommstein, General Surgeon