Urinary Tract Infection (UTI)

Urinary tract infection (UTI)

A urinary tract infection (UTI) is an infection from microbes. These are organisms that are too small to be seen without a microscope. Most UTIs are caused by bacteria, but some are caused by fungi and in rare cases by viruses. UTIs are among the most common infections in humans.

A UTI can happen anywhere in your urinary tract. Your urinary tract is made up of your kidneys, ureters, bladder, and urethra. Most UTIs only involve the urethra and bladder, in the lower tract. However, UTIs can involve the ureters and kidneys, in the upper tract. Although upper tract UTIs are rarer than lower tract UTIs, they’re also usually more severe.

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UTI symptoms:

Symptoms of a UTI depend on what part of the urinary tract is infected.

Lower tract UTIs affect the urethra and bladder. Symptoms of a lower tract UTI include:

  • Burning with urination
  • Increased frequency of urination without passing much urine
  • Increased urgency of urination
  • Bloody urine
  • Cloudy urine
  • Urine that looks like cola or tea
  • Urine that has a strong odor
  • Pelvic pain in women
  • Rectal pain in men