Proteinuria 1+ can be seen as physiological proteinuria or mild kidney damage, which will not affect the patient’s life expectancy after active treatment, but the specifics vary from person to person. The key also depends on the type of pathology and kidney function. A protein level in the urine above the normal range is called proteinuria, and a 24-hour urine protein quantification of more than 150 mg is sufficient to confirm the diagnosis. If you find proteinuria, you should go to the nephrology department for renal function, urological ultrasound, kidney CT and other examinations, combined with medical history and physical examination to clarify the cause of proteinuria. Factors such as fever, strenuous exercise and mental stress can lead to physiological proteinuria, which can disappear after the cause is removed. Glomerulonephritis, pyelonephritis, nephrotic syndrome and other diseases can lead to proteinuria. If the condition is mild, proteinuria disappears after active treatment and will not affect the patient’s life expectancy. If the treatment is untimely or inappropriate and the kidney function damage continues to worsen, it will shorten the life span of patients. Patients with proteinuria should take rest, give a light diet and avoid spicy and stimulating foods.