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A 48-year-old member asked:

can bacteria grow in your urine?

1 doctor answer1 doctor weighed in
Dr. Michael Ein
Infectious Disease 48 years experience
Yes: Urine cultures from patients with urinary tract infections frequently have greater than 100, 000 colonies of bacteria growing from each milliliter of urine.

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Similar questions

Garland, TX
A 19-year-old female asked:

What does it mean when I have bacteria in my urine?

2 doctor answers3 doctors weighed in
Dr. Dan Fisher
Internal Medicine 27 years experience
Doesn't mean much: Bacteria is sometimes found in urine for a variety of reasons. Bacteria is often a contaminant. Bacteria is only significant when the patient has signs and symptoms of infection ( burning, frequency, urgency, pressure in the bladder, fever, etc.) or when the organism is clearly a pathogenic organism - such as pseudomonas - and has no business in the urine.
A 45-year-old member asked:

What exactly does it mean when you have few bacteria in your urine?

1 doctor answer1 doctor weighed in
Dr. Charles Sturgis
Pathology 29 years experience
Often not a concern.: When urine is studied in a lab (urinalysis and/or culture), the lab staff will study the urine under a microscope. They may see (or culture) bacteria. These may represent a true bacterial infection, or in some instances if they are very few in number and if there is no accompanying inflammation, the bacteria may be a contaminant from the skin from the time of specimen collection. Ask your doc.
A 44-year-old member asked:

How could urogenital bacteria get into urine?

1 doctor answer2 doctors weighed in
Dr. James Pritsiolas
Nephrology and Dialysis 22 years experience
If real, from skin: Most likely contamination from the skin, especially if your urinalysis has epithelial cells. If your urinalysis does not have epithelial cells, or if yo have symptoms such as burning when you urinate or the need to urinate more often, then then this may truly reflect a urinary tracy infection from these bacteria having ascended your urethra via your skin.
Ponchatoula, LA
A 16-year-old female asked:

I have a little bacteria in my urine I'm 16?

1 doctor answer2 doctors weighed in
Dr. Alvin Lin
Dr. Alvin Lin answered
Geriatrics 30 years experience
UTI vs STD: Urine is supposed to be sterile. And peeing/voiding is supposed to be painless. How do you know you have a little bacteria in your urine? Why were you checked? Most common cause of bacteria in urine is a urinary tract infection (UTI) either simple bladder infection or more complicated & serious kidney infection. Sexually transmitted diseases can also make your urine appear dirty. See your doc

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Last updated May 5, 2014
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