Asymptomatic Bacteriuria

Asymptomatic Bacteriuria

  • Female pelvic organs
  • Male genitourinary system

Definition

Asymptomatic bacteriuria is the presence of bacteria in the urine, without any symptoms.

What is going on in the body?

Urine is usually free of bacteria. But sometimes the bacteria that a person normally carries on the skin or in the bowel can enter the urethra, the tube that carries urine from the bladder to the outside of the body. From the urethra, bacteria move into the bladder and infect the urine.
A small number of bacteria in the urine often produces no symptoms and is called asymptomatic bacteriuria. A larger number of bacteria in the urine often cause symptoms of urinary frequency, burning on urination, and sometimes fever, known as a urinary tract infection (UTI).

Risks

What are the causes and risks of the condition?

Bacteriuria can be caused by many conditions, including:
  • urine flowing backwards from the bladder to the ureter. The ureter is the tube that carries urine from the kidney to the bladder. This backflow of urine is called (vesicoureteral reflux).
  • a blockage somewhere in the urinary tract. The urinary tract consists of the kidney, ureter, bladder, and urethra.
  • incomplete emptying of the bladder during urination.
  • diabetes mellitus.
Many times, no specific predisposing condition can be identified.
Bacteriuria is more common in women than men, however the frequency increases with age for both sexes.

Prevention

What can be done to prevent the condition?

To prevent this condition, a person should:
  • drink enough fluids to continually flush out the bladder
  • try to completely empty the bladder when urinating
  • wipe from front to back rather than back to front after using the toilet

Diagnosed

How is the condition diagnosed?

Since there are no symptoms, this type of bacteriuria is diagnosed by examination of the urine. A healthcare professional may suspect this condition based on the results of urine analysis done in the office.

Long Term Effects

What are the long-term effects of the condition?

For most people, there is no reason to treat the condition, since there are no symptoms and usually no long-term effects. But, there are a few exceptions:
  • Young children should be checked more thoroughly to determine what is causing the bacteria.
  • Pregnant women are at risk of developing serious infections with untreated bacteriuria.
  • Anyone with a urinary tract infection caused by certain types of bacteria is at risk of developing stones in the urinary tract. People with diabetes are especially at risk.

Other Risks

What are the risks to others?

There are no risks to others. Bacteriuria cannot be spread to others.

Treatments

What are the treatments for the condition?

Most of the time there is no need to treat this condition. When treatment is needed, most doctors prescribe antibiotics such as trimethoprim-sulfamethoxazole (i.e., Septra, Bactrim, Cotrim, Sulfatrim) or nitrofurantoin (i.e., Furadantin, Macrodantin, Macrobid), for simple urinary tract infections. In most cases, a three-day course of therapy is enough.

Side Effects

What are the side effects of the treatments?

Antibiotics sometimes cause stomach upset or other reactions. A healthcare professional can provide more information about possible reactions.

After Treatment

What happens after treatment for the condition?

This condition is associated with few problems, except in the special cases noted above.

Monitor

How is the condition monitored?

The healthcare professional may want to perform urine analysis in the future to see if the condition has resolved.
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