What are the causes of a urine routine examination result showing 1+ occult blood?
Disease description:
My urinalysis test result shows occult blood 1+. What could be the cause of this result?
Doctor's answer (1)
Dr. Cao Zhiqiang
Occurrence of a 1+ result for occult blood in routine urine examination, indicating a positive urine occult blood test, may be caused by various factors:
1. Dietary factors: Long-term consumption of anticoagulant medications or excessive intake of iron-rich foods, such as animal liver and spinach, may lead to a 1+ occult blood result in routine urine tests.
2. Urinary tract infections: Conditions such as cystitis and pyelonephritis can cause inflammation that leads to leakage of red blood cells, resulting in bleeding.
3. Stones: Kidney stones, glomerulonephritis, or renal vascular diseases may also cause a positive urine occult blood test. Kidney stones can damage the mucous membrane of the renal pelvis or cause injury to the urinary tract mucosa when moving through the urinary system. Glomerulonephritis results from damage to the glomeruli, leading to rupture of red blood cells in the urine and causing bleeding.
4. Kidney diseases: Conditions such as glomerulonephritis and nephrotic syndrome can damage the glomerular filtration barrier, resulting in hematuria.
5. Vascular disorders: Conditions such as thrombocytopenic purpura or vasculitis can impair blood coagulation function, leading to bleeding.
If there are any concerns, timely medical consultation is recommended.
