A kidney infection is a painful and unpleasant illness that usually happens when bacteria travel up from your bladder into one or both of your kidneys.
Our Health A-Z contains more information on Pyelonephritis.
A urinary tract infection (UTI) is a common infection that occurs in the urinary tract (any part of the body used to make and get rid of urine).
Our Health A-Z contains more information on Urinary tract infection in children.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.