An infection in one or both kidneys is called pyelonephritis. It usually happens when bacteria get into the kidney. Rarely it is caused when other germs, such as viruses, fungi, or other disease-causing organisms, get into the kidney. The bacteria or other disease-causing organisms can enter the kidneys from the bladder or blood traveling from other parts of the body. A kidney infection can become serious. It can cause severe illness, scarring of the kidneys, or kidney failure if not treated correctly.
Common causes for this problem include:
- Not keeping the genital area clean and dry, which promotes the growth of bacteria.
- Wiping back to front. This drags bacteria from the rectum toward the urinary opening (urethra).
- Wearing tight pants or underwear. This lets moisture build up in the genital area, which helps bacteria grow.
- Holding urine in for long periods of time.
- Dehydration.
- Urinary tract infections.
- Blockages that keep urine from draining from the kidney, such as a kidney stone.
Kidney infections can cause symptoms similar to a bladder infection. Symptoms include:
- Pain or burning feeling when urinating.
- Having to urinate more often than normal.
- Blood in the urine (pink or red urine).
- Belly pain or discomfort, usually in the lower belly.
- Pain in the side or back.
- Pain above the pubic bone.
- Fever or chills.
- Vomiting.
- Loss of appetite.
Treatment is oral antibiotics. More severe cases are treated with I.M. (intramuscular) or I.V. (intravenous) antibiotics. These are started right away and may be changed once urine culture results show the infecting organisms. Treatment helps prevent a more serious kidney infection. Symptoms of kidney infections can vary based on your age.