A urinary tract infection (UTI) is a common bacterial infection affecting the urinary system, including the bladder, kidneys, ureters, and urethra. Risk factors include female anatomy, sexual activity, urinary catheter use, and underlying health conditions like diabetes. Symptoms may include frequent urination, burning sensation during urination, cloudy or bloody urine, and pelvic pain. Diagnosis involves urine analysis and culture. Treatment typically involves antibiotics to eradicate the infection. Complications can arise if left untreated, including kidney damage or bloodstream infections. Prevention strategies include staying hydrated, practicing good hygiene, urinating after intercourse, and avoiding irritating substances.