What diseases can be diagnosed by occult blood in urine? Be sure to pay attention!

Occult blood in urine refers to the presence of red blood cells that cannot be observed with the naked eye or microscope during a urine test, but a related reaction will appear when tested with a test paper or test stick. So what related diseases can occult blood in urine cause?

1. Occult blood in urine caused by damage to the urinary system.

When the urogenital system is damaged, it will inevitably cause damage to its capillaries, leading to extravasation of blood in the capillaries.

Compared with plasma, urine has a lower concentration and stronger osmotic capacity. Therefore, when red blood cells enter urine, urine intravasation is likely to occur, causing the red blood cells to fill and rupture. The hemoglobin inside them will also continue to extravasate, eventually leading to the occurrence of occult blood in urine.

2. Urinary tract inflammation causing occult blood in urine.

Inflammation of the urinary system can easily cause congestion and edema of the capillaries, resulting in thinning or even rupture of the capillary walls, causing extravasation of blood in the capillaries and ultimately leading to the occurrence of occult blood in the urine.

3. Urinary stones causing occult blood in urine.

The stone tissue of urinary stones is much denser and harder than normal tissue. Therefore, even a slight displacement of the stone tissue can easily cause scratches and lacerations on the capillaries of the urinary system, as well as blood extravasation, ultimately leading to occult blood in the urine.

4. Urinary system tumors causing occult blood in urine.

Urinary system tumors grow very quickly, so they can easily affect the displacement of nearby capillaries, causing damage and rupture of the nearby capillaries. The blood in the capillaries will also take the opportunity to flow out, eventually leading to the occurrence of occult blood in the urine.