A bacterial infection anywhere along the urinary tract — more common in women, but affects all ages.
A urinary tract infection occurs when bacteria — usually originating from the digestive tract — enter and multiply within the urinary system, most often the bladder. UTIs are common, especially in women due to anatomical factors, and while uncomfortable, they typically respond well and quickly to appropriate treatment once identified.
Most UTIs happen when bacteria travel from the skin around the genital or anal area into the urethra. Factors that raise the risk include not urinating soon after sex, holding urine for long periods, dehydration, and in some cases structural or hormonal factors that vary between individuals.
A urine test helps confirm the diagnosis and identify which bacteria are responsible, which guides the choice of antibiotic. Most uncomplicated UTIs clear within a few days of starting the right antibiotic, though drinking plenty of water and completing the full course, even once symptoms ease, helps prevent recurrence.
See a doctor if: symptoms persist beyond 2 days, or you develop fever and back pain, which can suggest a kidney infection.
