A 62-year-old woman is found to have a small, asymptomatic femoral hernia on routine abdominal examination during a health check-up. She has no pain, no bowel symptoms, and the hernia is easily reducible. She asks whether she needs surgery. What is the most appropriate management?

## Femoral Hernia: Asymptomatic vs Symptomatic **Key Point:** **All femoral hernias, even if asymptomatic, require elective surgical repair** due to the exceptionally high risk of strangulation (20–40%). This is a fundamental principle that distinguishes femoral hernias from other groin hernias. **High-Yield:** Femoral hernias have the **highest strangulation risk of any hernia type**. Unlike inguinal hernias (where watchful waiting is acceptable for asymptomatic cases), femoral hernias are an **absolute indication for elective repair** regardless of symptoms. ## Why Femoral Hernias Differ from Inguinal Hernias | Hernia Type | Asymptomatic Management | Reason | |---|---|---| | **Inguinal** | Watchful waiting acceptable | Lower strangulation risk (~10–15%); many remain asymptomatic | | **Femoral** | **Elective repair mandatory** | **Rigid anatomy → high strangulation risk (20–40%)** | | **Umbilical** | Repair if symptomatic or >0.5 cm | Lower risk in adults | **Clinical Pearl:** The femoral ring is bounded by: - **Medially:** Lacunar ligament (sharp, unyielding edge) - **Laterally:** Femoral vein - **Superiorly:** Inguinal ligament - **Inferiorly:** Pectineal ligament This rigid, narrow space compresses any hernia sac, leading to rapid vascular compromise. ## Natural History of Femoral Hernia 1. **Asymptomatic phase:** Patient unaware of hernia (often found incidentally). 2. **Acute strangulation:** Can occur without warning, even in small hernias. 3. **Bowel necrosis & peritonitis:** Develops within 6–12 hours if untreated. 4. **High mortality:** Emergency surgery for strangulation carries higher morbidity/mortality than elective repair. **Warning:** Do NOT reassure a patient with an asymptomatic femoral hernia that they can "wait and see." This is a surgical emergency waiting to happen. ## Surgical Repair Techniques **Mnemonic: FEMORAL repair options** — **F**lat mesh (Lichtenstein), **E**ndoscopic (TEP/TAPP), **M**cVay (tissue repair), **O**pen mesh, **R**obotic, **A**pproach depends on expertise, **L**ocal anesthesia acceptable. - **Lichtenstein (open mesh):** Gold standard for femoral hernia; low recurrence (~1–2%). - **Endoscopic (TEP/TAPP):** Suitable for bilateral or recurrent hernias. - **McVay repair:** Tissue repair; acceptable but higher recurrence than mesh. **High-Yield:** Mesh repair is preferred for femoral hernias because the femoral canal is small and rigid, making recurrence more likely with tissue repair alone. [cite:Sabiston Textbook of Surgery Ch 44; European Hernia Society Guidelines]