Urine protein weak positive refers to a small amount of protein in the urine, mostly physiological urinary protein, at this time is not serious; may also be pathologic urinary protein, generally also not serious, but the specific severity of the etiology related. 1. Physiological etiology: weak positive urinary protein is mostly due to physiological causes of urinary protein. Physiological urinary protein after strenuous exercise, emotional stress, high protein diet, more rest or vegetarian diet can return to normal, belong to the temporary, physiological urinary protein without treatment, not serious. 2. Pathological factors: urinary protein weak positive may also be a variety of renal and extra-renal diseases leading to pathological urinary protein, if the multiple myeloma, etc., more serious; and cystitis, urethritis, etc., is generally not serious; if acute nephritis, pyelonephritis, systemic lupus erythematosus, etc., depending on the severity of the original disease to determine the severity of the condition. It is recommended that patients with positive urine protein go to the hospital in time, follow the doctor’s instructions to complete the relevant examinations, comprehensive judgment, clear causes and timely treatment.