Benign prostatic hyperplasia history and symptoms

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Steven C. Campbell, M.D., Ph.D.

History and Symptoms

Benign prostatic hyperplasia symptoms are classified as obstructive or irritative. Obstructive symptoms include hesitancy, intermittency, incomplete voiding, weak urinary stream, and straining.

Irritative symptoms include frequency of urination, which is called nocturia when occurring at night time, and urgency (compelling need to void that can not be deferred). These obstructive and irritative symptoms are evaluated using the International Prostate Symptom Score (IPSS) questionnaire, designed to assess the severity of BPH.

BPH can be a progressive disease, especially if left untreated. Incomplete voiding results in stasis of bacteria in the bladder residue and an increased risk of urinary tract infections. Urinary bladder stones, are formed from the crystallisation of salts in the residual urine. Urinary retention, termed acute or chronic, is another form of progression. Acute urinary retention is the inability to void, while in chronic urinary retention the residual urinary volume gradually increases, and the bladder distends. Some patients who suffer from chronic urinary retention may eventually progress to renal failure, a condition termed obstructive uropathy.