Clearly visible and microscopic hematuria (blood in the urine) requires evaluation. The upper urinary tract should be imaged, and cystoscopy should be done if there is hematuria in the absence of infection. A comprehensive evaluation is necessary entailing of upper tract (kidneys and ureters) imaging, cystoscopy and urine cytology.
Paul A. Church, MD
Location and Office HoursUrology Practice Associates
100 West St
Needham Heights, MA 02494
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What test should be performed if I have blood in my urine?
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What can cause kidney scarring?
Anthony Komaroff, MD, Internal Medicine, answeredScarring occurs during the healing process after damage to living tissue and cells. Scars are an imperfect process for damaged tissues to heal. Scarring usually does not cause pain. It can on rare occasions lead to impaired function of an organ if the scarring is extensive.
When this occurs in the kidney, it is usually the result of an infection within the kidney tissue. Very often, this occurs from a urinary tract infection. There would rarely be any related pain or other symptoms.
Scarring may be seen on imaging of the kidney (ultrasound, CAT scan, or MRI) without the person ever knowing they have scarring.
Another much less common cause of kidney scarring is a blood clot that prevents oxygen getting to a part of the kidney. This leads to damage of the tissue and the formation of scars.
What is urethritis?
Urethritis is inflammation of the tube that carries urine from the bladder to outside of the body (urethra). It can be caused by a bacterial or viral infection (like some sexually transmitted infections), irritation from soap or spermicide, or injury.
Symptoms of urethritis can include:
- Pain or burning during urination (dysuria).
- An urgent need to urinate.
- A need to urinate more often than usual.
- A clear, yellow, or green discharge from the urethra.
When urethritis is caused by a bacterial infection, antibiotic medicine is used to treat it.
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