Inguinal Hernia
Lower LimbOverview
An inguinal hernia occurs when abdominal contents (usually bowel) protrude through a weakness in the abdominal wall muscles at the groin, creating a bulge that may be visible or palpable. While some hernias are asymptomatic and discovered incidentally, others cause localized pain, discomfort, and functional limitation. This condition requires careful clinical assessment to distinguish uncomplicated hernias from surgical emergencies such as strangulation.
Pathophysiology
The inguinal canal is a natural weakness in the anterior abdominal wall where the spermatic cord (in males) or round ligament (in females) passes through. Hernias develop when the transversus abdominis aponeurosis and internal oblique fascia fail to provide adequate support, allowing peritoneum and abdominal contents to herniate through. Direct hernias occur through the Hesselbach triangle (medial to the epigastric vessels), while indirect hernias follow the spermatic cord through the internal ring.
Patient Education
While not all hernias require surgery, you should seek medical review if symptoms worsen, if you develop sudden severe pain or nausea (suggesting incarceration), or if the hernia becomes increasingly prominent; conservative management focusing on avoiding straining, maintaining healthy weight, and careful activity modification may prevent progression.
Typical Presentation
Site
Groin region, typically unilateral; may extend into scrotum (males) or labia majora (females); often worse on the affected side when standing or after activity
Quality
Dull ache, dragging sensation, heaviness, or sharp catching pain; discomfort rather than severe pain in uncomplicated cases
Intensity
Mild to moderate; variable throughout the day; often minimal at rest and increasing with activity, straining, or prolonged standing
Aggravating
Standing for prolonged periods, heavy lifting, straining (coughing, constipation, urination), intense exercise, increased intra-abdominal pressure, tight clothing
Relieving
Lying down, manual reduction of bulge, rest, avoiding Valsalva maneuvers, light activity, supportive garments
Associated
Visible or palpable bulge in groin (especially when straining or standing), burning sensation, radiation to lower abdomen or inner thigh, sensation of fullness, swelling, history of previous hernia
Orthopaedic Tests
Test descriptions are written with AI assistance from standard clinical texts. Where a test lists Sources, its description has been checked against them; those sources are independent and do not endorse OsteoKit. Accuracy figures and grades (A–D) appear only when checked against the published study; tests without one are marked “No accuracy study”.
Further reading: full test procedures are described in standard clinical examination texts, e.g. Magee & Manske, Orthopedic Physical Assessment (7th ed.), and Cook & Hegedus, Orthopedic Physical Examination Tests: An Evidence-Based Approach (2nd ed.).
Inspection and Palpation While Straining
Procedure
Patient standing. Look at both groins, then place your fingers over the inguinal region and ask the patient to bear down (strain as if lifting something heavy).
Positive Finding
A bulge appears or is felt in the groin or scrotum with straining and goes back with relaxing.
Interpretation
Supports an inguinal hernia. Examination standing is more reliable than lying down. Refer to the GP for confirmation; ultrasound is used when the examination is unclear. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. An inguinal hernia is confirmed by a doctor's examination, with ultrasound when the examination is unclear; refer rather than rely on a single test.
Invagination Test (Palpation of Hernia)
Procedure
Usually performed by a doctor. With the patient standing, the examiner gently invaginates the loose scrotal skin with a finger up towards the external inguinal ring (just above and lateral to the pubic tubercle) and asks the patient to cough.
Positive Finding
An impulse or bulge felt at the fingertip with coughing.
Interpretation
Supports an inguinal hernia. This is an intimate examination and is usually left to the GP or surgeon; osteopaths should refer rather than perform it. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. An inguinal hernia is confirmed by a doctor's examination, with ultrasound when the examination is unclear; refer rather than rely on a single test.
Cough Impulse Test
Procedure
Patient standing. Place your hand flat over the groin, above the inguinal ligament, and ask the patient to cough. Compare sides.
Positive Finding
A distinct impulse or bulge felt with coughing, on one side more than the other.
Interpretation
Supports a hernia. A small impulse on both sides can be normal. Groin pain with coughing but no bulge can also come from the inguinal canal in athletes (inguinal-related groin pain). A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. An inguinal hernia is confirmed by a doctor's examination, with ultrasound when the examination is unclear; refer rather than rely on a single test.
Reducibility Check
Procedure
Usually performed by a doctor. With the patient lying down, gentle pressure is applied to a visible groin bulge to see whether it goes back in.
Positive Finding
The bulge goes back in with lying down or gentle pressure, and returns with standing or coughing.
Interpretation
A hernia that goes back in is reducible. A hernia that is tender, firm, will not go back in, or comes with vomiting, abdominal pain or a red, hot groin may be incarcerated or strangulated; this is an emergency. Do not try to force a hernia back in. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. An inguinal hernia is confirmed by a doctor's examination, with ultrasound when the examination is unclear; refer rather than rely on a single test.
Inspection for Groin Bulge (Standing)
Procedure
Patient standing, groins exposed. Look at both groins from the front and side at rest, then with coughing.
Positive Finding
A visible swelling or asymmetry in the groin or scrotum.
Interpretation
A visible bulge supports a hernia. A lump below the inguinal ligament, especially in women, may be a femoral hernia, which carries a higher risk of strangulation; refer promptly. No visible bulge does not rule out a hernia.
⚠ Red Flags
- •Sudden severe pain in hernia with nausea and vomiting (incarceration/strangulation)
- •Inability to reduce hernia manually or hernia becoming irreducible
- •Signs of bowel obstruction: severe abdominal pain, persistent vomiting, abdominal distension, constipation
- •Severe systemic signs: high fever, tachycardia, signs of shock
- •Skin changes over hernia: redness, warmth, discoloration suggesting tissue compromise
- •Recent significant trauma to groin region with acute swelling
⚡ Yellow Flags
- •Significant anxiety or catastrophic thinking about hernia or surgery
- •Avoidance of normal activities due to fear of hernia enlargement
- •Excessive focus on symptoms with minimal functional limitation
- •Resistance to medical review despite worsening symptoms
- •Secondary gain from sick role affecting rehabilitation compliance
- •Unrealistic expectations regarding non-surgical management
Osteopathic Techniques
Refer first
An inguinal hernia is a surgical problem: symptomatic hernias should be repaired when possible, and watchful waiting suits only hernias that cause few or no symptoms. Severe pain or signs of bowel obstruction can mean the hernia is incarcerated or strangulated, which needs emergency care. Refer for a surgical opinion rather than treating the hernia with manual techniques.
- Reference bookHammoud & Gerken · StatPearls 2023
Rehabilitation Exercises
Neutral Spine Standing Posture Correction
Diaphragmatic Breathing (Belly Breathing)
Transversus Abdominis Activation (Supine Hollowing)
Lumbar Spine Mobility in Supine Twist
Isometric Core Bracing (Multifidus Activation)
Dead Bug Exercise (Modified)
Pelvic Tilts (Supine)
Hip Flexor Stretch (Half-Kneeling Lunge)
Quadruped Core Stabilization (Bird Dog)
Pillow Squeeze (Adductor Activation)
Piriformis Stretch (Supine Figure Four)
Functional Lifting Mechanics Training
Referral Criteria
- •Presentation of red flag signs suggesting incarceration or strangulation (severe acute pain, nausea, vomiting, irreducibility)
- •Any sign of bowel obstruction or compromised hernia content
- •Failure to reduce hernia or hernia becoming progressively irreducible
- •Rapid enlargement of hernia or significant change in character of symptoms
- •Symptoms uncontrolled after 4-6 weeks of conservative management
- •Patient decision to pursue surgical repair (general surgical referral)
- •Symptoms interfering significantly with work or quality of life despite conservative management
- •Chronic symptoms causing substantial functional limitation where surgery may be indicated
- •Immunocompromised patients with hernia requiring enhanced monitoring
- •Patients with significant comorbidities requiring specialist surgical assessment prior to any intervention