Urine occult blood 1 + whether serious and cause urinary occult blood causes related, this situation may be urinary tract infection, urinary stones, nephritis, tumors and other causes, if the infection, stones, etc. is generally not serious, if the malignant tumors, etc. is generally more serious. 1. urinary tract infection: mainly caused by bacterial infection, can appear frequent urination, urinary urgency, painful urination, blood in the urine and other phenomena, urine routine often have white blood cells, red blood cells, urine protein and other indicators of abnormality, the general use of antibiotics can be used to treat drugs, such as levofloxacin, etc., and should be drinking more water and diligent urination. 2. urinary stones: when there are stones in the urinary tract, can be due to stone stimulation of the urethral mucosa bleeding and lead to hematuria, if the bleeding is more hematuria for the visual hematuria, the amount of bleeding is less for the microscopic hematuria, urinary occult blood 1 + indicates that the amount of bleeding is not too much, but should be active in the treatment of stones, such as taking the stone particles, renal stone pellets, etc., or to take the extracorporeal lithotripsy, surgical removal of stones. 3. Nephritis: patients with nephritis may have increased red blood cells in urine and increased urinary protein, and need to carry out renal function tests, urological ultrasound or even renal puncture to make a clear diagnosis, and can take renal drugs, such as xanthone capsule and so on. 4. Tumor: when there are tumors in the urinary tract, such as bladder tumor, kidney tumor, etc., which can cause abnormal urinalysis, further biopsy is needed to clarify the benign and malignant, if it is a malignant tumor is more serious, need to carry out surgical resection and cooperate with radiotherapy to prevent its recurrence and metastasis. When there is 1+ occult blood in urine, it is recommended to improve the examination, clarify the cause of the disease, and take reasonable medication under the guidance of the doctor or take surgery and other ways of treatment.