Urine routine in the urine protein +-, is the presence of a small amount of urine protein in the urine, indicating the presence of urine protein weak positive results, may be caused by physiological factors, may also be related to urinary tract infections and kidney disease. 1. physiological factors: a large amount of food containing high protein, such as fat meat, etc., may make the presence of a small amount of protein in the urine, there will be a weak positive result of urinary protein, should be adjusted to the dietary structure, to be able to independently recover. 2. Pathologic factors: (1) urinary tract infection: may be related to poor hygiene, can induce cystitis, it will make the presence of a small amount of protein in the urine, may also be accompanied by pain in urination, urinary frequency, urinary urgency and other related symptoms. (2) Kidney disease: for example, glomerulonephritis, due to abnormal kidney function, there will be a small amount of proteinuria, and in severe cases, there will be a strong positive result of urinary protein, and accompanied by symptoms such as swelling of the lower limbs and eyelid swelling. It is recommended that patients with abnormal urinary protein in urine routine should go to the hospital in time to improve the relevant examinations under the guidance of the doctor, and if it is caused by pathological factors, it should be actively treated to avoid the progression of the disease.