Frequent urination means needing to urinate more often than usual. Urgent urination is a sudden, compelling urge to urinate, along with discomfort in your bladder.

A frequent need to urinate at night is called nocturia. Most people can sleep for 6 to 8 hours without having to urinate. Middle aged and older men often wake to urinate once in the early morning hours.

When frequent/urgent urination is accompanied by fever, an urgent need to urinate, and pain or discomfort in the abdomen, you may have a urinary tract infection. Other possible causes of frequent urination include:

Diabetes. Frequent urination is often an early symptom of both type 1 and type 2 diabetes as the body tries to rid itself of unused glucose through the urine.

Pregnancy. From the early weeks of pregnancy the growing uterus places pressure on the bladder, causing frequent urination.

Prostate problems. An enlarged prostate can press against the urethra (the tube that carries urine out the body) and block the flow of urine. This causes the bladder wall to become irritable. The bladder begins to contract even when it contains small amounts of urine, causing more frequent urination.

Interstitial cystitis. This condition of unknown cause is characterized by pain in the bladder and pelvic region. Often, symptoms include an urgent and/or frequent need to urinate.

Diuretic use. These medications that are used to treat high blood pressure or fluid buildup work in the kidney and flush excess fluid from the body, causing frequent urination.

Stroke or other neurological diseases. Damage to nerves that supply the bladder can lead to problems with bladder function, including frequent and sudden urges to urinate.

Less common causes include alcohol use, anxiety, caffeine, vaginitis, tumor or growth in the pelvis, bladder cancer, bladder dysfunction, and radiation therapy.