Frequent urination is considered to be urination every two hours or more. Sometimes, it causes loss of control of bladder because the urge strikes suddenly. Frequent urination is strongly associated with frequent incidents of urinary urgency. Also the feeling of extremely full bladder can be uncomfortable. 

A frequent need to urinate at night is called nocturia. Frequent urination at night is a symptom that plagues many people. Patients experiencing frequent urination during nighttime will wake up at least once throughout the night to urinate. Those experiencing this symptom are typically over sixty years of age, but it can occur at any age. Fluid redistribution occurs when the blood stream reabsorbs fluids when a person is lying down and sleeping. This condition not only causes frequent urination while sleeping, but swelling due to excess fluid in the fingers, ankles and legs. 

Urinary urgency often occurs as a result of irritation and/or inflammation of the bladder wall. In cystitis, urinary frequency and urgency are the hallmark symptoms, in addition to nocturia (a frequent need to urinate at night) and dyspareunia (painful sexual intercourse due to medical or psychological causes). In many cases, however, these symptoms are often exacerbated by the consumption of certain foods and/or beverages such as caffeine, particularly coffee, regular tea, green tea, soda, diet soda and fruit juice. Cranberry juice, for example, often causes extreme urgency in patients.

Other common causes are diabetes mellitus, causing increased urine production (polyuria), prostate problems, causing disturbance along the urinary tract and pregnancy.

Less commonly, frequent urination may result from bladder cancer, bladder dysfunction or radiation therapy.

Urinary tract infection

A urinary tract infection (UTI), a bacterial infection that affects the lower urinary tract, is also known as a simple cystitis (a bladder infection). Symptoms from a lower urinary tract infection include painful urination and either frequent urination or the urge to urinate (or both).

Overactive bladder

Overactive bladder (OAB), a symptomatic condition with urgency as the main symptom, is similar or more prevalent in women, and its overall prevalence increases with age. The initial work-up for diagnosis of lower urinary tract symptoms (LUTS) including urgency begins with examination of clinical history and frequency volume chart, physical examination, and urinalysis. In urodynamic studies (UDSs), 50% of men with LUTS show bladder outlet obstruction due to benign prostate hyperplasia; therefore, the common next step for diagnosis of lower urinary tract symtoms in men is prostatic evaluation. However, in women for whom local and systemic pathologies can be ruled out by the initial diagnostic procedure for LUTS, it is common practice to administer conservative treatment and oral pharmacotherapy for OAB. 

Prostate

Prostate is located around one part of urethra (prostatic urethra). If the gland is enlarged (caused by benign prostatic hyperplasia, prostatitis or prostate cancer) it blocks the flow of urine. The bladder wall become more irritable and bladder contracts even after small amounts of urine, causing frequent urination.

Pregnancy

The growing uterus makes pressure on the bladder, which leads to more frequent urination.

Menopause

Due to anatomical reasons, hormonal alterations, pregnancies and deliveries consequences, which may compromise pelvic floor muscles, ligaments, fascia and local nerves postmenopausal women can suffer from frequent or urgent urination.

Find more about related issues

Creative Commons License
Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, involving multiple copyrights under different terms listed in the Sources section.