Normal renal function, urine protein 1+ is not necessarily nephritis, it may also be caused by physiological factors, such as fever, staying up all night, strenuous exercise and so on. Physiological factors may lead to a temporary increase in the permeability of the filtration membrane of the kidneys, at this time there will be a small amount of protein leakage, urine routine examination shows urine protein 1+. If the small arteries of the kidneys will be contracted during strenuous exercise, leading to a decrease in renal blood flow, resulting in functional renal insufficiency, the permeability of blood vessels will be changed, which will lead to an increase in the discharge of plasma protein. Patients vegetarian diet for three days, no strenuous exercise, and then review the urine routine, if the urine protein is still high at this time, there is the possibility of nephritis, it is recommended that further examination, in order to clarify the diagnosis and take appropriate treatment. If the urine protein is 1+, you should go to the regular hospital in time to clarify the cause of the disease and take appropriate treatment, so as not to delay the condition.