urinary tract infection is an infection in any part of your urinary system — your kidneys, ureters, bladder and urethra. Most infections involve the lower urinary tract — the bladder and the urethra.
Women are at greater risk of developing a UTI than are men. Infection limited to your bladder can be painful and annoying. However, serious consequences can occur if a UTI spreads to your kidneys.
Antibiotics usually are the first line treatment for urinary tract infections. Choice of drugs and duration of treatment depend on your health condition and the type of bacteria found in your urine.