UTIs are caused by bacteria. The bacteria invade the urinary system and multiply. The infection can occur in any part of the urinary system, but usually starts in the urethra. The urethra is a tube that carries the urine out of the body.
In most cases, bacteria begins growing in the urethra. The bacteria comes most often from the digestive tract and rectal area. They cling to the opening of the urethra and begin to multiply. An infection only in the urethra is called
. From there, bacteria move to the bladder, causing a bladder infection (
). If the infection is not treated right away, bacteria may then go up the ureters. Ureters are two tubes that carry urine from the kidneys to the bladder. From there the infection can continue into the kidneys (
Most infections are caused by one type of bacteria called
normally lives in the colon. In women, since the rectum and urethra are fairly close to each other, the bacteria can move into the urethra. This makes women more prone to UTIs than men.
UTIs can also be sexually transmitted. This type of infection usually does not spread past the urethra. Both partners need to be treated.
Bloody urine, low back pain, high fever, and chills are all signs of a
. Call your doctor right away if you have these symptoms.
The doctor will ask about your symptoms and medical history. A physical exam will also be done.
A sample of your urine will also be tested
for blood, pus, and bacteria.
Children and men who have UTIs may need more testing. There may be structural problems of the kidneys, bladder, or tubes that make them likely to have an infection.
UTIs are treated with antibiotic drugs. Standard medical care for a UTI includes taking antibiotics for three days. You most likely will start to feel better after a day or two. However, it is important that you continue to take the entire course of medication.
You may be asked to have your urine checked after you finish taking the antibiotics. This is to make sure that the infection is truly gone.
If you still experience recurrent infections, you may be referred to a specialist.
is a medicine that decreases pain and bladder spasm. It may turn your urine, and sometimes your sweat, an orange color.
In some cases, severe UTIs are treated with intravenous or intramuscular antibiotics. Researchers, though, found that oral antibiotics appear to be as effective in treating UTIs as other treatments.
If you are diagnosed with a UTI, follow your doctor's
Here are some steps you can take to keep bacteria out of your urinary tract:
Drink plenty of liquids.
Drinking cranberry juice or taking cranberry tablets may help prevent UTIs.
Urinate when you feel the need and do not resist the urge.
Empty your bladder completely and drink a full glass of water after having sex.
Wash genitals daily.
If you are a woman, always wipe from the front to the back after having a bowel movement.
12/5/2007 DynaMed's Systematic Literature Surveillance
DynaMed's Systematic Literature Surveillance
: Pohl A. Modes of administration of antibiotics for symptomatic severe urinary tract infections [review].
Cochrane Database of Systematic Reviews
2007(4). DOI: 10.1002/14651858.CD003237.
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a