thumb | right | alt=An image taken from a microscope showing a sparse collection of red blood cells | Microscopic hematuria: Red blood cells in a urine sample seen under the microscope. Microhematuria, also called microscopic hematuria (both usually abbreviated as MH), is a medical condition in which urine contains small amounts of blood; the blood quantity is too low to change the color of the urine (otherwise, it is known as gross hematuria). While not dangerous in itself, it may be a symptom of kidney disease, such as IgA nephropathy or sickle cell trait, or bladder pathology which should b
thumb | right | alt=An image taken from a microscope showing a sparse collection of red blood cells | Microscopic hematuria: Red blood cells in a urine sample seen under the microscope. Microhematuria, also called microscopic hematuria (both usually abbreviated as MH), is a medical condition in which urine contains small amounts of blood; the blood quantity is too low to change the color of the urine (otherwise, it is known as gross hematuria). While not dangerous in itself, it may be a symptom of kidney disease, such as IgA nephropathy or sickle cell trait, or bladder pathology which should be monitored by a doctor.
The American Urological Association (AUA) recommends a definition of microscopic hematuria as three or more red blood cells per high-power microscopic field in urinary sediment from two of three properly collected urinalysis specimens.
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