The Egyptian Society for Blood Transfusion Services
● Causes of blood in the urine. The appearance of hematuria may occur due to damage to any part of the pathway of urine excretion. The most prominent causes of blood in the urine include the following:
Urinary tract infections..
These infections are more common in women, but they may appear in men as these infections occur as a result of bacteria penetrating the urethra and from there to the bladder.
What distinguishes inflammation is painful urination, high frequency of urination, and the desire to urinate, in addition to the strong smell of this urine, as evidence of the presence of infections in certain people, especially the elderly, is microscopic hematuria.
Kidney infections..
This inflammation can occur as a result of bacteria penetrating into the kidneys through the blood circulation or ascending from the ureter to the kidneys. The symptoms of inflammation are similar to those of a urinary tract infection, in addition to fever and flank pain.
Presence of stones in the urinary tract.
Minerals that are concentrated in the urine may go through a process of sedimentation, which leads to the formation of stones, as we often do not feel the presence of a stone in the urinary tract except in cases where it causes it.
Obstruction, or when the stones are thrown out, if there are symptoms, they are in the form of strong pain or hematuria.
Prostate enlargement in men.
The prostate is located at the base of the bladder and surrounds the ureter, as this gland grows in middle-aged men and causes obstruction of the urethra, which may cause difficulty in urinating, or a desire to urinate and hematuria, and prostatitis may cause these symptoms.
• Kidney disease.
Hematuria is a common symptom of kidney infections such as glomerulonephritis that come as part of various systemic diseases.
• cancer..
Kidney, bladder and prostate cancers can lead to bleeding in the urinary tract.