A kidney infection is critical and be able to bring about lasting damage. You can encounter kidney infection at any age. Even though it is not that common, it is more common in women than in men. A kidney infection also called as pyelonephritis
In numerous cases, bacteria initially move to the urethra. When bacteria grow, an infection can take place. An infection restricted to the urethra is named urethritis. If bacteria travel to the bladder and develop, a bladder infection that called cystitis effects. If the infection is not treated quickly, bacteria can move further up the ureters to grow and infect the kidneys.

Causes of Kidney Infection
Kidney stones can be a cause of chronic or recurrent kidney infection. Stones are foreign bodies inside the “pelvis” or urinary side of the kidney and can allow bacteria to seed onto them. The kidney stones then become a reservoir for bacteria, leading to recurrent infection.
Prostate disease can cause kidney infection. When the prostate is enlarged or inflamed, it can result in a back up of urine from the bladder all the way up to the kidneys. This can trap bacteria in the urinary tract and can lead to both bladder and kidney infections. These can be very dangerous because prostate enlargement is most common in elderly men who often do not fight off infection well. The mortality rate from kidney infections is higher in the elderly than they are in young people.
Most kidney infection problems occur when bacteria come up from the outside through the bladder and up inside the ureters. In rarer cases, however, the individual can have infection first in the bloodstream, a condition called gram negative sepsis. Because the kidney filters blood, it can collect bacteria and cause infection in the kidneys themselves.

Signs of a Kidney Infection
There are a wide variety of symptoms that a person may have when they have a kidney infection. Someone need not have all of them to suspect that they have pyelonephritis, but a person should have a few before they start to worry. So if someone were suffering from persistent symptoms that have to deal with urinating difficulties and pain they should see their health care provider. The symptoms include a constant feeling that one needs to urinate, when urinating there is a burning feeling or pain as well as the urine appearing cloudy and having a stronger then normal smell. All of these symptoms, including blood in the urine mean that someone should go to see their health care provider right away. If along with these symptoms a person had any pain in the abdomen, or pain in the lower back or around the groin area or have a fever then they very likely have a kidney infection and should seek medical care.

Diagnosis
It is very important that you contact the doctor at the very first signs of kidney infection. An urine sample will be demanded from you if the doctor suspects you have kidney infection. That sample is needed because the doctor will have to determine whether blood, pus or bacteria is in your urine. Although kidney infection can’t be differentiated very easy from bladder infection, the presence of fever and upper back pain is a sign that the infection extended into the kidney.



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