Having protein in your urine can be an early sign of kidney disease.
Although it's possible for a little bit of protein to pass through your kidney's without being filterd by the kidneys it's NOT normal to have too much protein pass through your kidney's filters.
If you have too much protein in your urine then you could likely have kidney's that are beginning to fail.
Kidney disease will sometimes let Albumin leak out of your blood and into your urine.
Albumin is a protein that could be leaking into your urine and you need to get blood tests done because kidney disease can be fatal pretty quick if you don't get treated or get on dialysis soon enough.