The simultaneous presence of urine protein and occult blood (++) is most commonly seen in two types of diseases clinically: the first is glomerulonephritis, which manifests as polymorphic hematuria with urine occult blood. If there is a combination of polymorphic hematuria and urinary protein, the possibility of glomerulonephritis is generally considered. It is recommended that patients actively seek medical advice at the hospital to clarify the cause and guide the next step of treatment. This is because not only primary glomerulonephritis can lead to urinary occult blood and urinary protein, but secondary glomerulonephritis can also lead to urinary protein and urinary occult blood, so it is important to clarify whether it is a primary or secondary factor. The second common cause of combined urine protein and urine occult blood is urinary tract infection. Patients with urinary tract infection will have combined urine protein and urine occult blood, in addition to the presence of white blood cells in the urine, which helps to determine the urinary tract infection.