Hematuria; Blood in the urine
Blood in your urine, or hematuria, can be classified as microscopic or gross.
In women, blood may appear to be in the urine when it is actually coming from the vagina. In men, what may be mistaken for urinary bleeding is sometimes a bloody ejaculation, usually due to a prostate problem. In some cases, blood in the urine can sometimes be confused with blood from a bowel movement. In any case, you should see a health care provider.
Discoloration from certain drugs, beets, or other foods can mimic blood in the urine.
You may not see blood in your urine. In some cases, it is found microscopically when your doctor checks your urine during a routine exam. Your doctor will follow up on this problem to see if it persists and identify the cause.
When blood is visible to the naked eye, prompt and thorough evaluation is always needed. In children, hospitalization is often necessary to complete the work up.
There are many potential causes of blood in the urine. Often, bloody urine is from a problem in your kidneys or other parts of the urinary tract. If your kidneys, urinary tract, prostate, and genitals turn out to be fine, your doctor may check to see if you have a bleeding disorder.
Kidney and urinary tract causes include:
Causes from blood disorders include:
Gerber GS, Brendler CB. Evaluation of the urologic patient: History, physical examination, and the urinalysis. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 3.
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