Hematuria; Blood in the urine
Blood in your urine is called hematuria. The amount may be very small and only detected with urine tests or under a microscope. In other cases, the blood is visible. It often turns the toilet water red or pink. Or, you may see spots of blood in the water after urinating.
There are many possible causes of blood in the urine.
Bloody urine may be due to a problem in your kidneys or other parts of the urinary tract, such as:
If there is no structural or anatomical problem with your kidneys, urinary tract, prostate, or genitals, your doctor may check to see if you have a bleeding disorder. Causes may include:
Blood that looks like it is in the urine may actually be coming from other sources, such as:
The urine can also turn a red color from certain drugs, beets, or other foods.
You may not see blood in your urine because it is a small amount and is microscopic. Your health care provider may find it while checking your urine during a routine exam.
Never ignore blood you see in the urine. Get checked by your provider, especially if you also have:
Call your provider right away if:
Also call if:
Your provider will perform a physical exam and ask questions such as:
Tests that may be done include:
The treatment will depend on the cause of blood in the urine.
Gerber GS, Brendler CB. Evaluation of the urologic patient: history, physical examination, and urinalysis. In: Wein AJ, Kavoussi LR, Novick AC, Partin AW, eds. Campbell-Walsh Urology. 10th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 3.
Landry DW, Bazari H. Approach to the patient with renal disease. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 114.
Last reviewed on: 8/31/2015
Reviewed by: Jennifer Sobol, DO, urologist at the Michigan Institute of Urology, West Bloomfield, MI. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.