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Symptoms of Urinary Tract Infection (UTI)

  • Cynthia M. Johnson, MA
Publication Type:

Condition InDepth

Symptoms of Urinary Tract Infection (UTI)

Most people with a UTI will have symptoms such as:

  • Passing urine more often
  • Passing only small amounts of urine at a time
  • Feeling like they need to pass urine right away
  • Problems waiting to pass urine during the day or at night
  • Burning or pain when passing urine
  • Genital itching
  • Pain in the lower belly, lower back, or along the sides under the ribs
  • Blood in the urine—women may have blood on toilet paper after passing urine and wiping
  • Cloudy urine—may also have pus
  • Urine with a strange smell

An infection that has gone into the kidneys may also cause:

  • Fever or chills
  • Severe pain in the lower back

Children and babies may have less common problems, such as:

  • Irritability
  • Feeding problems
  • Not being able to wait to pass urine
  • Diarrhea
  • Nausea or vomiting
  • Slow weight loss and growth—failure to thrive

Older people may have problems like tiredness, confusion, loss of appetite, or trouble walking.


  • Bladder infection (urinary tract infection—UTI) in adults. 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.
  • Introduction to urinary tract infections (UTIs). Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/genitourinary-disorders/urinary-tract-infections-utis/introduction-to-urinary-tract-infections-utis.
  • Uncomplicated urinary tract infection (UTI) (pyelonephritis and cystitis). EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/uncomplicated-urinary-tract-infection-uti-pyelonephritis-and-cystitis.
  • Urinary tract infections in adults. Urology Care Foundation website. Available at: https://www.urologyhealth.org/urology-a-z/u/urinary-tract-infections-in-adults.


  • James Cornell, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.