2. Urinary tract infection (UTI).
Urinary tract infections (UTIs) are another common cause of frequent urination. A UTI refers to an infection that occurs in any component of the urinary system, including the bladder, the kidneys, the ureters, or the urethra, though UTIs most commonly affect the lower portion of the urinary tract, which includes the urethra and the bladder. Infections of the urinary tract are usually the result of bacteria entering the urinary system via the urethra.
Frequent urination is one of the symptoms that are associated with a UTI, though there are other symptoms, as well. If you find that, in addition to increased urine output, you also experience a burning sensation when you try to empty your bladder, you only release a small amount of urine, your urine looks cloudy or discolored (dark, red, or bright pink), and there’s a strong odor, you may have a UTI.