It’s troubling to see blood in your urine. While the cause is often seemingly harmless, blood in the urine (hematuria) can be a sign of a serious condition.
Gross hematuria refers to blood that can be seen.
When your doctor tests your urine, microscopic hematuria (urinary blood visible only under a microscope) is discovered. It’s critical to figure out what’s causing the bleeding in any case.
Causes of Blood in Urine
1. Urinary Tract Infections
These occur when bacteria enter your body through the urethra and multiply in your bladder.
2. Kidney infections (Pyelonephritis)
These can occur when bacteria enter your kidneys from your bloodstream or move from your ureters to your kidney(s).
3. Bladder or Kidney Stone
The minerals in concentrated urine sometimes form crystals on the walls of your kidneys or bladder. Over time, the crystals can become small, hard stones that can injure the kidneys.
4. Enlarged Prostate
The prostate gland — which is just below the bladder and surrounding the top part of the urethra— often enlarges as men approach middle age. It then compresses the urethra, partially blocking urine flow.
5. Kidney disease
Microscopic urinary bleeding is a common symptom of glomerulonephritis, an inflammation of the kidneys’ filtering system.
Visible urinary bleeding may be a sign of advanced kidney, bladder or prostate cancer.
This is a hereditary defect of hemoglobin in red blood cells. It can result in blood in urine, both visible and microscopic hematuria.
8. Kidney Injury
A blow or other injury to your kidneys from an accident or contact sports can cause visible blood in your urine
10. Strenuous exercise
It’s rare for strenuous exercise to lead to gross hematuria, and the cause is unknown. It may be linked to an injury to the bladder, dehydration, or the breakdown of red blood cells that occurs with sustained aerobic exercise.
Treatment of Blood in Urine
Treatment may include antibiotics to cure a urinary tract infection, prescription of medication to decrease an enlarged prostate, or shock wave therapy to break up bladder or kidney stones, depending on the cause of the hematuria. Treatment isn’t always required.
After therapy, make sure you see your doctor to make sure there’s no more blood in your urine.