Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/14/2025

Diagnostic and Management Approach for Suspected Hernias

Diagnostic Approach

  • A complete physical examination focusing on the suspected hernia site, including inspection and palpation, is recommended for suspected hernias, according to the World Journal of Emergency Surgery 1, 2
  • For groin hernias, examination of the patient both standing and supine, with a Valsalva maneuver, can help reveal reducible hernias 2
  • Digital rectal examination may be necessary for suspected anorectal hernias, but should be performed after abdominal X-ray if a foreign body is suspected, as suggested by the World Journal of Emergency Surgery 1, 3
  • Routine laboratory tests are not recommended for uncomplicated hernias, but may be necessary in cases of suspected strangulation or incarceration, including complete blood count, serum lactate, D-dimer, CPK, and inflammatory markers 2, 4

Imaging Studies

  • For diaphragmatic hernias, chest X-ray is recommended as first-line imaging, but has limited sensitivity, and contrast-enhanced CT scan is the gold standard, according to the World Journal of Emergency Surgery 5, 6
  • For abdominal wall and inguinal hernias, ultrasonography is recommended as first-line imaging, especially for women and unclear diagnoses 6

Management Approach

Surgical Management

  • The decision between open or laparoscopic approach for uncomplicated hernias should be based on patient characteristics and surgeon expertise, as recommended by the World Journal of Emergency Surgery 2, 4
  • For complicated hernias, laparoscopic repair may be performed in the absence of strangulation, but open pre-peritoneal approach is preferable when strangulation is suspected 2, 4
  • In patients with signs of peritonitis or hemodynamic instability, an open abdominal approach is strongly recommended, according to the World Journal of Emergency Surgery 2, 3

Common Pitfalls and Caveats

  • Normal chest X-rays do not exclude diaphragmatic hernias, with false negatives in 11-62% of cases, as noted by Praxis Medical Insights 6
  • A negative CT scan should not rule out internal hernias in post-bariatric surgery patients, also noted by Praxis Medical Insights 6