Urinary Frequency (Pollakiuria)
Differential Diagnosis of Urinary Frequency
Urinary frequency is caused either by reduced bladder capacity or increased urine production.
Urinary Frequency due to Anatomically Reduced Bladder Capacity
Urinary Frequency due to Functionally Reduced Bladder Capacity
- Inflammation: e.g. bladder infection, prostatitis
- Postvoid residual urine by subvesical obstruction (e.g. BPH)
- Neurogenic bladder dysfunction
- Psychological causes
Urinary Frequency due to Increased Urine Production
Increased urine production is defined by a urine output of more than 2.5–3 l/24 h.
- Excessive drinking, psychogenic polydipsia
- Diabetes mellitus
- Diabetes insipidus
Index: 1–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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