Hernia Hernia Risk Factors and Prevention 2 — Questions and Answers
Question 1: Heavy lifting increases hernia risk by what mechanism?
- Directly tearing abdominal muscle fibers
- Sharply elevating intra-abdominal pressure, forcing abdominal contents through weak areas (Correct answer)
- Stretching the inguinal ligament
- Reducing blood flow to the abdominal wall
Correct answer: Sharply elevating intra-abdominal pressure, forcing abdominal contents through weak areas
Lifting dramatically spikes intra-abdominal pressure, which can force abdominal contents through pre-existing or newly created fascial defects.
Question 2: Which dietary change helps reduce hernia risk by preventing constipation and straining?
- Low-fiber, high-protein diet
- High-fiber diet with adequate hydration (Correct answer)
- High-fat diet
- Low-calorie fasting diet
Correct answer: High-fiber diet with adequate hydration
A high-fiber diet promotes regular bowel movements, reducing the need to strain at stool and thereby lowering intra-abdominal pressure spikes.
Question 3: Why does ascites (fluid in the peritoneal cavity) increase hernia risk?
- It decreases abdominal wall tension
- It chronically elevates intra-abdominal pressure, expanding pre-existing defects (Correct answer)
- It causes infection of the abdominal wall
- It reduces blood supply to the fascia
Correct answer: It chronically elevates intra-abdominal pressure, expanding pre-existing defects
Large-volume ascites continuously increases intra-abdominal pressure, causing umbilical and other hernias to enlarge or develop in susceptible individuals.
Question 4: How does prior abdominal surgery increase risk for incisional hernia?
- Surgical instruments permanently stretch muscle fibers
- Incisions create fascial defects that may not heal fully, becoming weak points (Correct answer)
- Surgery removes protective peritoneal fat
- Anesthesia permanently weakens abdominal muscles
Correct answer: Incisions create fascial defects that may not heal fully, becoming weak points
Surgical incisions disrupt fascial integrity, and impaired healing—due to infection, obesity, or poor nutrition—leaves a weak scar vulnerable to hernia formation.
Question 5: Which comorbidity most significantly impairs wound healing after hernia repair, increasing recurrence risk?
- Hypertension
- Diabetes mellitus (Correct answer)
- Hypothyroidism
- Iron deficiency anemia
Correct answer: Diabetes mellitus
Diabetes impairs collagen synthesis, reduces immune response, and compromises microvascular perfusion, all of which hinder wound healing and increase recurrence.
Question 6: Patients on long-term corticosteroids have increased hernia risk because these drugs do what?
- Increase appetite, causing obesity
- Impair collagen synthesis and weaken connective tissue (Correct answer)
- Reduce physical activity
- Cause ascites
Correct answer: Impair collagen synthesis and weaken connective tissue
Corticosteroids inhibit fibroblast activity and collagen production, leading to connective tissue weakness that predisposes patients to hernias and impairs repair.
Hernia Hernia Risk Factors and Prevention 2
Heavy lifting increases hernia risk by what mechanism?