Definition Blood in your urine, or hematuria, can be classified as microscopic or gross. Microscopic hematuria is when there is very little blood in the urine and it can only be seen with a microscope. Gross hematuria is when there is enough blood in the urine that you can see it with the naked eye. Usually it turns toilet water pale pink or bright red, or you may just see spots of blood in the water after urinating. Alternative Names Hematuria; Blood in the urine Considerations 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 wh...
Bloody stools often are a sign of an injury or disorder in the digestive tract. Your doctor may use the term "melena" to describe black, tarry, and foul-smelling stools or "hematochezia" to describe red- or maroon-colored stools.
Stools - bloody; Hematochezia; Melena; Stools - black or tarry
Blood in the stool may come from anywhere along your digestive tract, from mouth to anus. It may be present in such small amounts that you cannot actually see it, and it is only detectable by a fecal occult blood test.
When there is enough blood to change the appearance of your stools, the doctor will want to know the exact color to help find the site of bleeding. To make a diagnosis, your doctor may use endoscopy or special x-ray studies.
Black stool usually means that the blood is coming from the upper part of the gastrointestinal (GI) tract. This includes the esophagus, stomach, and the first part of the small i...
Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. This article discusses the test done to measure the amount of creatinine in your urine.
A blood test can also be used to determine your creatinine level. See: Serum creatinine
Urine creatinine test
How the test is performed
A random urine sample or a 24-hour collection may used. For information on how to collect a 24-hour urine sample, see: 24-hour urine collection .
How to prepare for the test
Your health care provider may tell you to temporarily stop taking certain medicines that may interfere with test results. Such medicines include:
How the test will feel
The test involves only normal urination, and there is no discomfort.
Why the test is performed
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