Urinary Urgency: Clinical Meaning

Acute Kidney Injury (AKI)

AKI is a sudden decrease in kidney function over hours to days, causing accumulation of waste products and fluid and electrolyte imbalances. Pre-renal (dehydration), intrinsic renal, and post-renal (obstruction) causes must be distinguished.

Interstitial Cystitis (Painful Bladder Syndrome)

Interstitial cystitis is chronic bladder pain and pressure with urinary urgency and frequency, without infection. It predominantly affects women and significantly impairs quality of life; treatment is multimodal including bladder training and medications.

Benign Prostatic Hyperplasia (BPH)

BPH is non-malignant enlargement of the prostate gland causing lower urinary tract symptoms including weak stream, frequency, urgency, and nocturia. It is nearly universal in men over 80; alpha-blockers and 5-alpha reductase inhibitors are first-line treatments.

Urethritis

Urethritis is inflammation of the urethra, most commonly caused by sexually transmitted infections (gonorrhea, chlamydia) or non-gonococcal bacteria. Symptoms include urethral discharge, burning urination, and urethral discomfort.

Overactive Bladder

Overactive bladder is characterized by urinary urgency with or without urge incontinence, increased daytime frequency, and nocturia. It affects up to 16% of adults.