What causes hematuria in men?

When male urinary symptoms occur, attention should be paid to whether there are some urinary system diseases, such as common kidney stones or infections, as well as prostatitis and prostatic hypertrophy. These diseases may also cause hematuria symptoms.

1. There are mainly the following aspects:

Urinary system diseases, such as nephritis, stones, infection, tuberculosis, tumor, deformity, injury, etc.

Pathologies of organs adjacent to the urinary tract, such as prostatitis, prostatic hypertrophy, pelvic inflammatory disease, appendicitis, etc.

Systemic diseases, such as infectious diseases, blood diseases, cardiovascular diseases, etc.

Drug factors, such as taking sulfa drugs, anticoagulants, or injecting mannitol, etc. ⑤ Hematuria after exercise. Other systemic symptoms associated with hematuria can also be used to analyze and distinguish the causes of hematuria. Currently, the examination of the morphology of urine red blood cells is used to determine the source of hematuria, with a compliance rate of about 90%. The specific method is to take the urine sediment after centrifugation, place it on a glass slide, and use a phase contrast microscope to observe the morphology of red blood cells in the urine.

2. In glomerular hematuria, the red blood cells in the urine are deformed red blood cells, that is, the red blood cells present various shapes, such as donut-like, strawberry-like, water-drop-like, and even broken red blood cells, indicating that the hematuria is caused by glomerular lesions. In non-glomerular hematuria, the red blood cells in the urine are mostly normal or roughly normal in shape. What exactly causes the urine? In addition, macroscopic hematuria should also be distinguished from hemoglobinuria. Hemoglobinuria is caused by hemolytic diseases, the content of free hemoglobin in plasma increases, exceeds the renal threshold, is filtered from the glomerulus, and enters the urine. The color of hemoglobinuria can be red, brown, or even black.

3. Differentiation from hematuria mainly relies on microscopic examination . The urine of hematuria contains a large number of red blood cells, while hemoglobinuria contains no red blood cells. This is the fundamental difference between the two.