Whether urinary occult blood 3+ and protein 1+ is serious or not depends mainly on its etiology and cannot be generalized. If it is caused by physiological reasons such as fatigue, strenuous exercise, etc., usually not serious; if it is caused by pathological reasons such as glomerulonephritis and other diseases, if there is no timely and standardized intervention and treatment may be the progression of the disease, the development of uremia, at this time more serious. 1. Physiological reasons: such as overwork, strenuous exercise, fever, etc., generally after resting, urinary occult blood and urine protein can be improved, without special treatment, usually does not appear more serious situation. 2. Pathological causes: such as primary glomerular disease, lupus nephritis, etc., if the primary disease is not timely and standardized treatment, it may cause the progression of the primary disease, the gradual decline in renal function, and in severe cases, may even lead to uremia, which is more serious. Urine occult blood 3 +, protein 1 + may also have other reasons, it is recommended that patients go to the regular hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.