Whether urinary occult blood +- is normal depends mainly on its cause. If it is caused by physiological reasons such as strenuous exercise or improper retention of urine, it is usually normal and does not require special treatment; if it is caused by pathologic reasons such as glomerulonephritis, urinary tract infections, stones, etc., it may not be normal and requires further treatment. Physiological causes such as excessive mental stress, strenuous exercise, etc., or due to improper retention of urine, such as not correctly take the cleaner mid-range urine, or women are in the menstrual period, may lead to urinary occult blood +-, the above situation is normal, no special treatment. If the pathological causes such as glomerulonephritis, urinary tract infection, stones, etc., may also appear urine occult blood +-. At this time is not normal, need to actively treat the primary disease, improve the symptoms. Urine occult blood +- may also have other reasons, it is recommended that patients go to the regular hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.