Clues Pointing TO This Diagnosis

Age 68 male — BPH prevalence rises steeply with age, affecting roughly half of men in their 60s and most men by 80
Nocturia five times nightly with fragmented sleep — nocturia is a classic storage (irritative) LUTS of BPH
Weak, dribbling stream — a slow/weak stream is a hallmark obstructive (voiding) symptom of bladder outlet obstruction from BPH
Hesitancy ("had to wait to start") — urinary hesitancy is a core obstructive symptom
Sensation of incomplete emptying — incomplete bladder emptying is a typical obstructive symptom of BPH
Daytime urgency and frequency — irritative symptoms reflecting secondary detrusor changes from chronic obstruction
Both obstructive and irritative symptoms present — the mixed voiding/storage pattern is characteristic of symptomatic BPH
Digital rectal exam showing a smoothly enlarged prostate — a symmetrically enlarged, smooth, nontender gland supports benign hyperplasia rather than cancer
Normal/not-suspicious PSA — helps make prostate cancer less likely as the cause
Moderate IPSS of 22 — a validated symptom score quantifying moderate-to-severe LUTS and guiding treatment

Why It's NOT the Similar Diseases

NOT prostate cancer — the DRE reveals a smooth, symmetrically enlarged gland without nodules, and PSA does not raise concern; cancer typically produces a hard nodule and arises in the peripheral zone
NOT urinary tract infection/prostatitis — there is no dysuria, fever, or pyuria on urinalysis, and symptoms are chronic and progressive rather than acute
NOT overactive bladder alone — pure OAB causes urgency/frequency without the obstructive features (weak stream, hesitancy, incomplete emptying) that Wendell has
NOT urethral stricture — stricture usually follows instrumentation, trauma, or infection and lacks the diffuse prostatic enlargement seen here
NOT neurogenic bladder — there is no neurologic disease (Parkinson, stroke, MS, spinal cord injury) or diabetes to explain a neurogenic cause

Differential Diagnosis List

Prostate cancer — ruled out by smooth, non-nodular enlarged prostate on DRE and non-concerning PSA
Urinary tract infection/prostatitis — ruled out by absence of dysuria, fever, and abnormal urinalysis
Overactive bladder — ruled out by prominent obstructive symptoms and enlarged prostate
Urethral stricture — ruled out by lack of instrumentation/trauma history and presence of diffuse prostatic enlargement
Neurogenic bladder — ruled out by absence of neurologic disease or diabetes

Key Distinguishing Test

BPH is a clinical diagnosis based on bothersome LUTS plus an enlarged prostate with no other identified cause; the initial workup includes history, DRE, urinalysis, an IPSS score, and a PSA when a cancer diagnosis would change management.
A smoothly enlarged prostate on DRE with a non-suspicious PSA supports BPH, and urinalysis excludes infection or hematuria; uroflowmetry (low Qmax) and post-void residual assess obstruction severity but are not required for diagnosis in a typical case.

Board Note

Classic presentation is an older man with mixed obstructive (weak stream, hesitancy, incomplete emptying) and irritative (frequency, urgency, nocturia) symptoms; quantify severity with the IPSS
Per the 2021 AUA guideline, α-blockers (e.g., tamsulosin) are the first-choice pharmacotherapy; 5α-reductase inhibitors (e.g., finasteride) are added for larger prostates (≈≥30 cc) and take months to shrink the gland; tadalafil is another option
Combination α-blocker plus 5α-reductase inhibitor lowers the risk of progression and acute urinary retention more than either alone, and is favored for larger glands with more severe symptoms
5α-reductase inhibitors lower PSA by roughly half over about 6–12 months—remember to interpret PSA accordingly; α-blockers can cause orthostatic hypotension, dizziness, and retrograde ejaculation
Refer to urology for BPH-related renal insufficiency/CKD, refractory or recurrent urinary retention, recurrent UTIs, bladder stones, gross hematuria, concern for cancer, or symptoms failing medical therapy; TURP is the surgical reference standard
Acute urinary retention is the classic urologic emergency—treat with immediate bladder catheterization

“Wendell’s Story”