Urinary tract infections (UTIs) are urinary tract infections. This type of infection can affect the urethra (a condition called urethritis), the kidneys (a condition called pyelonephritis), or the bladder (a condition called cystitis).

Your urine usually does not contain bacteria. Urine is the kidney, a by-product of our filtration system. Urine is produced when the kidneys remove waste products and excess water from the blood. Normally, urine travels through the urinary system without being contaminated. However, bacteria can invade the urinary system from outside the body and cause problems such as infection and inflammation. This is a urinary tract infection (UTI).