is protein in urine serious
Protein in Urine. Protein in urine is an important sign of many kidney diseases and therefore it is always tested for during a urine test. However, protein in urine also occurs because of many non-serious reasons. In fact, most people with an initial positive urine test for protein do not have any serious disease. You may find urine protein finding described as Trace, 1+, 2+,3+ or 4+. These numbers are a rough estimate of the amount of protein present.