Urinary tract infection
UTIs are common infections that happen when bacteria, often from the skin or rectum, enter the urethra, and infect the urinary tract. The infections can affect several parts of the urinary tract, but the most common type is a bladder infection (cystitis). Kidney infection (pyelonephritis) is another type of UTI. They’re less common, but more serious than bladder infections. Symptoms of a bladder infection can include: Pain or burning while urinating Frequent urination Feeling the need to urinate despite having an empty bladder Bloody urine Pressure or cramping in the groin or lower abdomen Symptoms of a kidney infection can include: Fever Chills Lower back pain or pain in the side of your back Nausea or vomiting Younger children may not be able to tell you about UTI symptoms they are having. While fever is the most common sign of UTI in infants and toddlers, most children with fever do not have a UTI. If you have concerns that your child may have a UTI, talk to a healthcare professional.