Blood in Urine

(Hematuria—Adult)

Definition

Blood in the urine is also called hematuria. Normally, urine does not contain blood.There are two kinds of hematuria:
  • Microscopic hematuria—Urine contains a small amount of blood, which is not visible to the naked eye
  • Gross hematuria—Urine is visibly discolored by blood, appearing red or tea-colored

Causes

In some cases, the cause of hematuria is never found. The list of known causes is lengthy. Some more common causes include:

Risk Factors

Factors that may increase your risk of hematuria include:
  • Smoking
  • Medications such as certain antibiotics and pain medications
  • Recent upper respiratory tract infection
  • Family history of kidney problems
Kidney Stone
si1991 96472 1
Copyright © Nucleus Medical Media, Inc.

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