Benign prostatic hyperplasia is the usual cause of prostatism-irritative and obstructive urinary symptoms. Steps in making the diagnosis include a focused neurologic examination, urinalysis, serum creatinine determination and, possibly, catheterization to detect urinary retention. It is difficult to predict the likelihood of future complications, such as complete urinary obstruction, even for patients with severe symptoms. The natural course of prostatism is a waxing and waning of symptoms. Treatment options are watchful waiting, medication, transurethral prostatectomy, and newer surgical treatments such as microwave thermopathy and laser ablation. The family physician can counsel patients about the potential side effects of these treatments as well as the problems incurred by simply adjusting to the disabilities associated with benign prostatic hyperplasia.