One cause of frequent urination is urinary-tract infection. Symptoms can include burning with urination, foul-smelling urine, fever and pelvic pain, according to the Mayo Clinic Health Letter.
Other common causes of frequent urination include:
-- Diuretics and other medications.
-- Weakening of the muscles of the bladder, urethra and pelvic floor.
-- For men, an enlarged or infected prostate can lead to urgency and frequent urination, especially at night.
-- Treating cancers near the bladder may damage the bladder wall.
-- Bladder cancer, as well as bladder stones or bladder inflammation.
-- When diabetes causes excess blood sugar to be excreted into urine, it draws water from the body's tissues, increasing the need to urinate.
-- Diseases that cause kidney decline.
-- A weak heart, which can't pump blood efficiently, causes fluids to build up in the body, causing frequent urination.
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