First Published: January 2004
Last Revised: January 2004
Peer Review Status: Internally Peer Reviewed
When passing blood in urine is associated with pain, especially abdominal pain, it could be associated with kidney or ureteral stones. The pain could be localized to the back, to the side, to the groin, or the penis in men and the labia in women.
If you are passing different-shaped clots in your stream, they could represent bleeding from the urethra or prostate (in men). Clots can be wormlike, and if associated with pain it could represent clots coming from your ureters(tubes from your kidneys to your bladder).
The color of the urine can be also affected by certain foods or medications. However, you should always consult your doctor if this develops.
When the blood in the urine is at the beginning of urination, it most likely comes from the urethra, (the tube from the bladder to the outside). Blood throughout urination is most likely from the bladder or kidneys or ureters (the tubes connecting the kidneys and the bladder). Blood at the end of your stream may be from the bladder or prostate (in men).
Causes of blood in the urine vary from inflammatory conditions to infection, such as urinary tract infections. Blood can also come from an enlarged prostate in men. However, cancer of the urethra, bladder and kidneys also may also show up as blood in the urine.
Blood in the urine in any man over the age of 40 or any woman over the age of 50 should warrant full urologic evaluation because the most common cause of blood in the urine in this group of people is bladder cancer. Prior to that age, infection may be the cause, but if there is recurrence of blood, it certainly needs to be further investigated. In this case full evaluation should be done by a urologist to rule out cancer or other abnormalities.
Full evaluation includes an x-ray study of your kidneys and bladder, and cystoscopy. Cystoscopy involves the doctor looking directly inside your bladder by using a very small camera. If you have blood in the urine, you should contact your physician immediately. Your doctor then would possibly determine the cause and refer you to a urologist if needed.
See related Patient Textbooks about Urology.
See related Patient Topics Bladder Diseases, Kidneys and Urinary System or Urology.
See related Provider Textbooks about Urology.
See related Provider Topics Kidneys and Urinary System or Urology.
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