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Doctor insights on: What Causes Slight Blood In Urine Besides Infection

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Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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What can cause a large amount of blood in urine besides an infection?

Stones?: Kidney stones, bladder cancer, kidney disease, endometriosis, are few of the examples. If you have blood in the urine you should see your doctor promptly. ...Read more

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Can an infection cause blood in urine?

Can an infection cause blood in urine?

Yes: Cystitis (bladder infection) can cause blood in the urine. There are other reasons for blood in the urine so this is a symptom that needs to be reported to your physician. ...Read more

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Why does a urinary tract infection cause blood in urine?

Why does a urinary tract infection cause blood in urine?

Inflammation. : Bacterial infections can cause inflammation/irritation of the lining of your urinary tract leading to traces of blood making its way in your urine. Also explains why sometimes with a bad cold we sometimes see streaks of blood in mucous and phlegm. Bacteria similarly cause irritation of the respiratory tract lining. ...Read more

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Blood in urine without infection (blood and urine tests confirm). No visible sores. Disconfort in penis for 4/6 weeks. What could be the cause?

Blood in urine without infection (blood and urine tests confirm). No visible sores. Disconfort in penis for 4/6 weeks. What could be the cause?

Source of blood?: you need to figure out the source of this blood -- whether it is kidneys or bladder and then treat according to resource and cause for it. ...Read more

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How can a yeast infection cause my UA to show small traces of blood in urine.

How can a yeast infection cause my UA to show small traces of blood in urine.

Here are some...: Yeast alone almost unlikely cause UTI; usually it is a secondary cause like a patient with indwelling catheter, stent, or infected stones, etc. in the urinary tract. If there are no suspectable or identifiable underlying causes found, one has to think if urine contamination takes place in its collection. Besides, always interpret the test result with correlating with clinical profile. ...Read more

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Could sti cause blood in urine and be missed in urine culture, which was negative? urine showed infection markers but culture was neg -- worried sti

Could sti cause blood in urine and be missed in urine culture, which was negative? urine showed infection markers but culture was neg -- worried sti

Hematuria: Blood in the urine is rarely due to STI. It could happen, but the main symptom of STI involving the urinary tract is urethriits, with abnormal discharge and often discomfort on urination, but no blood. However, with "infection markers" (WBC?), it is reasonable to test urine for STI, especially gonorrhea and chlamydia. But most likely it's something else, e.g. passing a stone. Keep working w/ MD. ...Read more

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8wk postpartum hypertension 165/123 blood in urine no infection. Referral to urologist ?? Cause lower back pain & Cesarian scar pain R side US normal

8wk postpartum hypertension 165/123 blood in urine no infection. Referral to urologist ?? Cause lower back pain & Cesarian scar pain R side  US normal

BP Rx needed: First of all, you need to have your obvious hypertension treated with medication. Secondly, have your OB GYN search for answers as to why you are still having pain 2 months post partum C/S which is not normal. The back pain may be related to the blood in your urine, wither with a urinary tract infection/pyelonephritis or a complication/cause of the hypertension. A Urologist is a good idea. ...Read more

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I'm having symptoms of blood in urine, but not infection. How is this possible?

I'm having symptoms of blood in urine, but not infection. How is this possible?

Blood in urine: Blood in urine is called hematuria. If you can see it, it is macroscopic hematuria meaning larger amount of blood than if u had microscopic hematuria. If infection has been ruled out by proper culture, which can not be assumed always, other causes of inflammation like growth, stones, drugs and other renal diseases need to be ruled out. ...Read more

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Went to Dr and said I pulled something in my back, checked urine for infection, said there was blood in urine and no sign of infection what could it b?

Went to Dr and said I pulled something in my back, checked urine for infection, said there was blood in urine and no sign of infection what could it b?

Hematuria: Blood in the urine can be caused by trauma (running long distances as an example), tuberculosis, tumors, kidney disease like glomerulonephritis, etc. This needs further evaluation if not due to infection. Good luck. ...Read more

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Reasons for trace amount of blood in urine without infection?

Reasons for trace amount of blood in urine without infection?

There Are Many: You need to see your doctor or a nephrologist who can take an accurate history, perform a through physical exam, and do a few simple tests to narrow the possibilities, . ...Read more

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Does hemolyzed blood in urine mean infection?

Does hemolyzed blood in urine mean infection?

See below: Blood in the urine can indicate an infection but can mean other things as well what it does mean is there is a site in the urinary tract that is bleeding and that means you need to see a physician to find out the cause. ...Read more

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What does small traces of blood in urine without an infection mean?

What does small traces of blood in urine without an infection mean?

Blood in urine: If only a trace amount of blood (without any protein in urine), the most likely possibilities include kidney stones or crystals in the urine, recent heavy exercise, thin basement membrane nephropathy, or IgA nephropathy. The latter 2 are detected with a kidney biopsy, but in the absence of protein in the urine most nephrologists would not pursue one. Also need to consider a kidney or bladder mass. ...Read more

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Passed blood in urine. It has stopped. There was no infection. Do I need to follow up?

Passed blood in urine. It has stopped.  There was no infection.  Do I need to follow up?

Yes: At 55 years old, blood in the urine needs to be worked up in order to search for an underlying cause. You want to rule out any important or life-threatening causes for the bleeding. Please see your doctor. ...Read more

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Urinanlys showed small amt of blood in urine microscopically. Will have it rechecked in 2 weeks. Urine showed everything else as normal. No infection.

Urinanlys showed small amt of blood in urine microscopically. Will have it rechecked in 2 weeks. Urine showed everything else as normal. No infection.

Is this new?: You'll do well to have a follow-up, probably with imaging. Many people have this for a lifetime with no problems -- these people often have a mutated collagen gene that allows red cells to pass through the little filters in the kidneys. However, this finding is worrisome for stone, tumor etc if its a new finding at your age. Best wishes. Usually these things are manageable. ...Read more

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Can I have a bladder infection with no blood in urine?

Can I have a bladder infection with no blood in urine?

Yes: Frequency of urination, painful voiding, and occasionally fever can all be present wih a bladder infection even if there is no blood in the urine. In fact, while there can be blood associated with a uti, most of the time there is no complaint of blood in the urine, but burning and frequency is usually present. ...Read more

Dr. Michael Michaels
630 doctors shared insights

Blood In Urine (Definition)

Hematuria is the presence of blood in the urine. When you can see the blood, it's called gross hematuria. When the blood can only be seen under a microscope it is known as microscopic hematuria. Hematuria can be caused by kidney stones, kidney infections, urinary tract infections, an enlarged prostate, cancer, certain medications, and ...Read more


Dr. Marvin Ott
9 doctors shared insights

Infection (Definition)

Infections are invasions of some other organism (fungus, bacteria, parasite) or viruses into places where they do not belong. For instance, we have normal gut bacteria that live within us without causing problems; however, when those penetrate the bowel wall and enter the bloodstream, ...Read more