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Doctor insights on: My Daughter Has Blood In Her Urine But No 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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If normal morphology for red cells can a renal cause be eliminated for a microscopic hematuria in urine?ct scan normal no infection.

If normal morphology for red cells can a renal cause be eliminated for a microscopic hematuria in urine?ct scan normal  no infection.

See a Urologist: CT with contrast is good to find small renal masses. Really tiny ones not on CTs can still cause hematuria, but are often not clinically significant, at least not yet. A follow up CT sometime may be considered. Blood may be from the ureter or bladder,requiring CT/U/S or poss. MRI. Blood can come from diffuse renal disease, esp. if there is also protein in the urine. CT may not see this. ...Read more

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Gross hematuria, end of urination. Blood samples, urine samples done. No infection. "Tense" bladder, lower back pain, occasional scrotum/testicle pain?

Gross hematuria, end of urination. Blood samples, urine samples done. No infection. "Tense" bladder, lower back pain, occasional scrotum/testicle pain?

Terminal hematuria: Could be posterior urethritis or prostatitis, assuming urine is clear at first. Advise consult urologist. Will likely order kidney & bladder ultrasound + possible cystoscopic examination. Cystoscope is a long thin instrument for examining urethra & bladder. ...Read more

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My 3 yr old daughter is going to the bathroom very often. The doctor tested her urine and there is no infection, but the problem continues. ?

My 3 yr old daughter is going to the bathroom very often. The doctor tested her urine and there is no infection, but the problem continues. ?

Not always infection: Several possibilities: 1. Diabetes (though other symptoms would be present) 2. Environmental irritant (soap is too alkali or irritating) 3. Anatomical issues (using retention of urine) or 4. Physiologic problem (overactive bladder). Regardless, a repeat evaluation by your doctor or a referral to a pediatric urologist is recommended. ...Read more

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Dr. James Lin Dr. Lin
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What exactly does it mean when you have blood in your urine but urinalysis shows no infection?

Dr. James Lin Dr. Lin
1 doctor agreed:
What exactly does it mean when you have blood in your urine but urinalysis shows no infection?

Here are some...: The causes for blood in urine may mount to >100, but can be grouped in 5 categories: infection/ inflammation, urinary stones, urinary obstruction, new growth - benign or malignant, & chronic silent kidney disease. For more details, go to http://www.formefirst.com/hematuria.html. Thereby, you'll gain useful insights on how to deal with it and work closely with Doc timely... ...Read more

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My 8 yr old daughter has had a vegitation removed from her left ventrical. But blood results say no infection?

My 8 yr old daughter has had a vegitation removed from her left ventrical. But blood results say no infection?

Culture negative veg: Several reasons 1. Bland vegetation (from tumor or clot without infection present) 2. On antibiotics (if she was on antibiotics the infection may be eradicated or suppressed. 3. Blood culture may be negative because at the time they were taken the vegie was not shedding organisms (thats why we do alot of blood cultures); vegie may still grow organisms. 4.Hard to organisms on routine cultures. ...Read more

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Testing urine for UTI no infection was found but trace of blood what could this mean?Further testing is to be done but will take a few days!

Testing urine for UTI no infection was found but trace of blood what could this mean?Further testing is to be done but will take a few days!

Blood in urine: Can be due to bladder irritation, stones, kidney problems, bleeding disorder, tb, cancer, irritation of the genital skin, being on your period, etc. Important to get it evaluated by your doctor. ...Read more

Dr. Lynne Weixel
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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