Urine erythrocyte microscopy 3 +, urine protein 1 +, the causes need to consider pathological factors such as glomerulonephritis, urinary tract infections, and urinary stones, etc.; physiological factors such as strenuous physical activity, staying up all night, and so on. 1. Pathological factors (1) Glomerulonephritis: acute glomerulonephritis, chronic nephritis, cryptogenic nephritis, and allergic purpura nephritis may cause microscopic hematuria and elevated urine protein. (2) Urinary tract infection: Inflammatory infections can also cause red blood cell rupture, resulting in positive urinary occult blood, and hemoglobin can cause positive urine protein. (3) urinary stones: the ureteral mucosa is easily scratched by stones, which then induces microscopic hematuria, once the red blood cell rupture may cause positive urinary occult blood as well as positive urine protein. 2. Physiological factors: such as strenuous exercise, late at night, nutcracker syndrome, etc., may cause urine protein, urine occult blood abnormal. Urine routine abnormal patients, it is recommended that the regular hospital in a timely manner to receive further examination, according to the results of the diagnosis and treatment as prescribed by the doctor.