Evaluation of Urinary Symptoms in Men

Indications for Rectal Examination

The European Association of Urology and the American Urological Association recommend that a rectal examination should be performed systematically in all men presenting with lower urinary tract symptoms, without exception, as part of the initial evaluation 1, 2, 3
The rectal examination is essential for excluding locally advanced prostate cancer, which can also cause lower urinary tract symptoms 1

The rectal examination allows for the simultaneous evaluation of prostate size, detection of suspicious anomalies, and guidance of therapeutic decisions 1, 2, 4
A suspicious rectal examination finding, such as a nodule, induration, or asymmetry, justifies immediate referral to a urologist before initiating any treatment 2, 4

All patients with urinary symptoms should receive a complete medical history, including an evaluation of symptoms using a validated questionnaire (IPSS) 2
A systematic rectal examination should be performed to evaluate prostate size, texture, and nodularity 1
PSA testing should be performed in association with the rectal examination for a sensitive approach to excluding prostate cancer 1
Urine analysis should be performed to exclude infection or hematuria 2

If the rectal examination reveals any of the following anomalies, immediate referral to a urologist is recommended: suspicious rectal examination finding, elevated PSA (particularly >10 ng/mL), hematuria, associated pain, recurrent urinary tract infections, palpable bladder, or associated neurological disease 2, 4, 5

The rectal examination and PSA testing are complementary, not interchangeable, and a abnormal rectal examination or elevated PSA justifies a prostate biopsy guided by transrectal ultrasound 1, 4
The combination of both tests offers the best sensitivity for excluding prostate cancer 1

A digital rectal examination (DRE) is crucial in identifying prostate disease in men with urinary tract infections (UTIs), which affects treatment duration and management strategy, as recommended by the European Association of Urology 6, 7

The European Association of Urology recommends DRE evaluation to investigate the possibility of underlying prostate disease in asymptomatic bacteriuria in men 6, 7
Locally advanced prostate cancer can produce lower urinary tract symptoms mimicking UTI, and the DRE may reveal nodules, induration, or asymmetry that warrant immediate urological referral before initiating any treatment, as noted in guidelines from urological societies 8
Prostate size estimation, although less accurate than ultrasound, can be assessed through DRE, with findings guiding further management, according to the European Association of Urology 9, 10

The DRE findings directly determine antibiotic duration and additional interventions, with normal prostate findings indicating standard UTI treatment duration, as suggested by the European Urology guidelines 10
Do not assume asymptomatic bacteriuria is benign in men without performing DRE to exclude underlying prostate pathology, as recommended by the European Association of Urology 6, 7
Recognize that DRE underestimates true prostate size, so if the prostate feels large on examination, it is usually significantly enlarged on imaging, as noted in urological guidelines 8, 10