Physical examination maneuver
Physical Exam
Digital Rectal Exam
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Video coming September 2026
How to Perform
Explain the examination and obtain consent, with a chaperone present. Position the patient (commonly left lateral decubitus with knees drawn up). Inspect the perianal skin, anus, and perineum. Lubricate a gloved index finger, ask the patient to bear down to relax the sphincter, and insert the finger gently. Assess resting sphincter tone, then sweep the finger to palpate the rectal walls for masses or tenderness and, in men, palpate the prostate for size, contour, consistency, and nodules. On withdrawal, note any stool or blood on the glove.
How to Interpret
Showing all 2 findings
Cauda Equina Syndrome
Reduced anal sphincter tone on digital rectal examination
Rule in
Minimally helpful
Rule out
—
Evidence:Strong
Prostate Cancer
Abnormal prostate on digital rectal examination
Rule in
Not helpful
Rule out
Not helpful
Evidence:Strong