Populations and Risk Factors
- Men (much more frequently than women for abdominal hernias, especially inguinal)
- Heavy lifters, those straining during bowel movements, or forceful persistent coughing
- Obese individuals and pregnant women
- Patients with chronic lung diseases (increased intra-abdominal pressure from coughing)
- Those with previous surgical scars (incisional hernia risk)
- Infants (umbilical hernia — usually self-resolving)
Causes and Pathophysiology
- Fascial weakness: A hole or weak spot in the fascial wall allows internal contents (bowel, omentum, stomach) to protrude through under increased intra-abdominal pressure
- Types: Inguinal (direct/indirect) — groin. Most common in men due to the inguinal canal. Hiatal — stomach protrudes through the diaphragm into the thoracic cavity. Umbilical — through the navel. Common in infants or post-pregnancy. Incisional — at previous surgical scar sites where fascia has been weakened
- Strangulation mechanism: When the fascial ring around the hernia constricts, blood supply to the protruding organ is cut off, leading to tissue necrosis, peritonitis, and septic shock — this is a surgical emergency
- Reducible vs. irreducible: Reducible hernias can be manually pushed back through the defect. Irreducible (incarcerated) hernias cannot, increasing the risk of strangulation
Signs and Symptoms
- Visible or palpable bulging and pain at the hernia site (abdominal hernias)
- Heartburn and GERD symptoms (hiatal hernias)
- Soft, squishy mass that may be reducible (pushed back in)
- Bulge more prominent with standing, straining, coughing, or Valsalva maneuver
- Pain increases with movements raising intra-abdominal pressure
- Red flags: Hard, extremely painful, discolored hernia = strangulation — emergency medical referral immediately; nausea/vomiting with an irreducible hernia indicates possible bowel obstruction
CMTO Exam Relevance
- CMTO Appendix category A1 (MSK conditions)
- Key test: Valsalva maneuver to reveal non-obvious hernia (bearing down increases intra-abdominal pressure)
- Red flag: strangulation (suddenly hard, extremely painful, discolored) = immediate medical referral
- Know hernia types and their locations
- Understand the risk of confusing inguinal hernia with other groin pathology
Massage Therapy Considerations
- Untreated hernia: Specific or deep massage locally contraindicated (fascial wall already compromised — pressure may enlarge the defect or push contents through)
- Hiatal hernia: Avoid direct pressure on the upper abdomen. Position with head elevated if client has GERD
- Indirect benefits: General massage promotes relaxation. Abdominal massage (away from active hernia) may help constipation (a major risk factor for hernia progression)
- Positioning: Careful to avoid positions increasing abdominal pressure. Supine with knees bolstered reduces intra-abdominal pressure
- Post-surgical (herniorrhaphy): Standard post-surgical scar mobilization after physician clearance. Address compensatory guarding patterns
Key Takeaways
- Specific or deep massage is locally contraindicated over an untreated hernia (fascial wall already compromised)
- A suddenly hard, extremely painful, discolored hernia indicates strangulation — a medical emergency requiring immediate referral
- Valsalva maneuver is a key assessment tool to reveal non-obvious hernias
- Avoid positions that increase abdominal pressure. For hiatal hernia, avoid direct pressure on the upper abdomen
- General relaxation massage away from the hernia site is safe and may help reduce constipation (a major risk factor)