What Does Protein 2+ Mean?

Many people undergo routine physical examinations every year, but when they receive the examination report, they often do not fully understand some of the test results labeled on it and have to consult a doctor. What does the appearance of protein 2+ in a urine routine test mean? Protein 2+ in a urine routine test indicates the presence of protein components in the urine, and such results are mostly caused by kidney diseases, so further examination is necessary.

Protein +2 indicates that your urine contains protein components, which may be related to kidney disease. It is necessary to undergo kidney examination to confirm whether this reaction is caused by kidney disease. There are many reasons for the appearance of urine protein, the most common being kidney diseases such as glomerulonephritis. However, urinary tract infections, fever, and intense physical activities can also lead to positive urine protein.

1. Renal tissue proteinuria, also known as secretory proteinuria, occurs when proteins produced by tubular metabolism infiltrate into the urine during urine formation.

2. Tubular proteinuria is most commonly caused by heavy metal salt poisoning, interstitial nephritis, renal vein thrombosis, renal artery embolism, and other causes.

1. Proteinuria caused by the mixing of lower urinary tract proteins into the urine is seen in urinary system infections, urinary tract epithelial cell shedding, and urinary tract mucin secretion.

2. Body fluid proteinuria, also known as overflow proteinuria, is seen in conditions such as multiple myeloma.

3. Tissue proteinuria can be caused by proteins in the urine of malignant tumors and host proteins produced by viral infections.