Urinary tract infections (UTIs) are bacterial infections that occur anywhere in the urinary tract, including the kidneys, ureters, bladder, and urethra. UTIs are among the most common bacterial infections, affecting millions of people each year, with women being more prone to UTIs than men. These infections can vary in severity, ranging from mild discomfort to severe complications such as kidney damage or sepsis if left untreated. UTIs are typically caused by bacteria entering the urinary tract through the urethra and multiplying in the bladder or kidneys.