3.2 Rectal and Male Urogenital Examination/Findings

Rectal and Male Urogenital Examination/Findings

Quick Answer: Digital rectal examination (DRE) evaluates sphincter tone, the prostate (size, symmetry, nodules, tenderness), and gross blood. On Part II, pair DRE with neurologic status — decreased tone plus saddle anesthesia suggests cauda equina syndrome. In male urogenital exam, testicular torsion (sudden pain, absent cremasteric reflex, high-riding testis) is a surgical emergency; epididymitis is more subacute with epididymal tenderness and often a positive Prehn sign. Know indirect vs. direct inguinal hernias and when occult blood on the glove changes the GI workup.

Indications and Clinical Context

Chiropractic candidates are not expected to perform exhaustive urogenital surgery exams, but Part II tests whether you recognize when these components belong in the workup and how to interpret documented findings. DRE is indicated when the differential includes:

• Lower urinary tract symptoms (hesitancy, weak stream, nocturia, retention)
• Suspected prostate disease (cancer screening context, prostatitis, BPH progression)
• Rectal bleeding or occult GI blood loss
• Cauda equina or conus medullaris syndrome (sphincter tone)
• Pelvic or deep hypogastric pain where visceral sources mimic lumbar complaints

Male external genitalia and hernia examination are indicated for scrotal pain, swelling, trauma, infertility workup contexts, and groin masses that patients may describe as "hip" or "lower abdominal" pain.

Digital Rectal Examination

Perform DRE with informed consent, privacy, and lubrication. Assess in sequence:

1. External anus — hemorrhoids, fissures, skin lesions, fistula openings.
2. Sphincter tone — normal voluntary squeeze; decreased tone suggests neurologic injury (cauda equina, peripheral neuropathy) or prior surgery.
3. Prostate (anterior wall in men) — size, symmetry, consistency, nodules, tenderness.
4. Posterior rectal wall and cul-de-sac — masses, tenderness, stool character.
5. Glove inspection — gross blood, melena-colored stool, pus.

Prostate Findings

Clinical trap: A tender, boggy prostate with fever is prostatitis, not cancer — but prostatitis can elevate PSA, so lab interpretation must account for inflammation. Conversely, a clinically benign-feeling prostate does not exclude cancer; Part II may test that DRE has limited sensitivity and abnormal PSA still warrants follow-up.

Anorectal and Neurologic Overlap

Board favorite: A middle-aged man with "low back pain," new urinary retention, and decreased rectal tone is not a lumbar facet case — the rectal exam finding redirects to cauda equina.

Male External Genital Examination

Inspect the penis and scrotum with the patient standing and supine as needed. Palpate each testis and epididymis separately.

Testicular Emergencies

Clinical trap: Both present with scrotal pain and nausea. Absence of cremasteric reflex and high-riding testis push toward torsion even before Doppler ultrasound — do not delay referral for "maybe epididymitis" when torsion signs are present.

Varicocele, Hydrocele, and Hernia

• Varicocele — "bag of worms" superior to left testis (left gonadal vein angle); evaluate fertility context; rarely sudden pain (consider renal vein thrombosis if acute).
• Hydrocele — transilluminating fluid collection around testis; painless swelling.
• Indirect inguinal hernia — protrudes through internal inguinal ring, often into scrotum; common in infants and adults; reducible unless incarcerated.
• Direct inguinal hernia — Hesselbach triangle defect; bulges medially; rarely enters scrotum; associated with aging and chronic strain.

Ask the patient to cough or Valsalva while palpating the external ring and inguinal canal — a palpable impulse supports hernia. Incarcerated or strangulated hernia presents with painful irreducible mass, nausea, and possible bowel obstruction signs — surgical emergency.

Documentation and Referral Thresholds

Part II rewards knowing when findings change the care pathway:

• Hard prostate nodule → urology/oncology workup.
• Fecal occult blood in patient over 45 with anemia → GI malignancy evaluation.
• Absent cremasteric reflex with acute scrotum → emergency surgery consult.
• Decreased anal tone with saddle anesthesia → emergency MRI for cauda equina.

Chiropractic management may continue for appropriate neuromusculoskeletal conditions, but these urogenital and rectal findings define stop-and-refer boundaries. Document objective exam language ("firm 1 cm right lobe nodule," "absent cremasteric reflex right") rather than diagnostic labels alone when the vignette tests recognition of the finding itself.

Age-Specific Screening Context

Part II may embed screening logic without turning the item into a public-health trivia question. Fecal occult blood testing and colonoscopy indications apply when unexplained anemia or GI bleeding appears in adults over 45–50. PSA discussion belongs in shared decision-making contexts for average-risk men — the board tests whether you recognize that a hard nodule plus rising PSA outranks population screening debates. In younger men, acute scrotal pain always prioritizes torsion exclusion over cancer screening. Linking age, exam finding, and the appropriate next study — ultrasound for scrotal emergencies, urology referral for nodular prostate, MRI for cauda equina — is the integrative skill these items reward.