9 Causes of Hematuria

What is hematuria?

Hematuria is the presence of blood in a person’s urine. The two types of hematuria are

• Gross hematuria : when a person can see the blood in his or her urine
• Microscopic hematuria : when a person cannot see the blood in his or her urine, yet it is seen under a microscope

Causes of Hematuria

Common causes of blood in urine include:

1. Bladder or kidney infections
2. Bladder or kidney stones
3. Certain kidney diseases, such as inflammation in the filtering system of the kidneys (glomerulonephritis)
4. Enlarged prostate (benign prostatic hyperplasia) or prostate cancer
5. Inherited diseases such as sickle cell anemia and cystic kidney disease
6. Certain medications such as aspirin, penicillin, heparin, cyclophosphamide, and phenazopyridine
7. A tumor in the bladder, kidney, or prostate
8. Kidney injury from an accident or sports
9. Vigorous exercise