People can have a UTI without symptoms. But in most cases, they will notice problems. The most common are:
If the infection has gone up into the kidneys, you may have:
Children and babies may have less common problems such as:
Older people may have more vague symptoms of a UTI such as fatigue, confusion, loss of appetite, or trouble walking.
Bacterial urinary tract infections (UTIs). Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/genitourinary-disorders/urinary-tract-infections-utis/bacterial-urinary-tract-infections-utis. Updated June 2018. Accessed September 20, 2018.
Symptoms & causes. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: https://www.niddk.nih.gov/health-information/urologic-diseases/bladder-infection-uti-in-adults/symptoms-causes. Updated March 2017. Accessed September 20, 2018.
Uncomplicated urinary tract infection (UTI) (pyelonephritis and cystitis). EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T116894/Uncomplicated-urinary-tract-infection-UTI-pyelonephritis-and-cystitis. Updated June 4, 2018. Accessed September 20, 2018.
Urinary tract infections in adults. Urology Care Foundation website. Available at: https://www.urologyhealth.org/urologic-conditions/urinary-tract-infections-in-adults. Accessed September 20, 2018.
Last reviewed September 2018 by EBSCO Medical Review Board
Adrienne Carmack, MD
Last Updated: 9/20/2018