Urine occult blood 1+ is one of the results of a urine test. Urine occult blood 1+ means that the patient may have a small amount of red blood cells or hemoglobin in the urine. A normal urine occult blood test result should be negative. Urine occult blood 1+ may be a physiological condition such as strenuous exercise, Nutcracker Syndrome, etc., or it may be a pathological condition such as nephrological diseases and urological diseases (e.g. nephritis, chronic cystitis, etc.). 1. Physiological conditions: usually strenuous exercise, nutcracker syndrome, etc., may cause urinary occult blood 1 +, at this time there is no need for special treatment, pay attention to rest, weight gain can be, but also to pay attention to review, observe the condition. 2. Pathological conditions (1) Glomerulonephritis: Glomerulonephritis can lead to increased renal filtration permeability, hemoglobin and red blood cells in the blood are filtered into the urine, and cannot be reabsorbed through the renal tubules, which leads to urinary occult blood 1+ in routine urine examination. (2) Chronic cystitis: When chronic cystitis occurs in patients, due to infectious pathogenic microorganisms stimulating the mucosa of the urinary tract, mucosal erosion, edema, mucosal breakage, bleeding phenomenon, resulting in blood in the patient’s urine, which makes the patient’s urine routine examination of urine occult blood 1+ results. Urine occult blood 1 + there are many other reasons, such as urinary stones, tumors, coagulation dysfunction and so on. If the patient has urine occult blood 1 +, it is recommended to go to the hospital in a timely manner, follow the doctor’s instructions to improve the relevant examination, targeted treatment.