A urinary tract infection (UTI) is an infection of the urinary system. UTIs cause symptoms like discomfort, painful urination, and frequent urge to urinate. Around 90% of all UTIs are caused by E. Coli bacteria. However, other species of bacteria - as well as viruses and fungi - can cause these infections.
UTIs often start in the lower urinary tract (your bladder and urethra). A UTI in your urethra is called urethritis, and a UTI that originates or spreads to your bladder is called cystitis.
Some UTIs can begin in the upper urinary tract (your kidneys and ureters). While this is rare, kidney infections (pyelonephritis), can be life-threatening if left untreated.






























