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Inguinal Triangle / Triangle of Hasselbach

• This triangle is situated deep to the posterior wall of the inguinal canal hence it is seen on the inner aspect of the lower part of anterior abdominal wall
• It is bounded inferiorly by the medial third of the inguinal ligament, medially by the lower lateral border of rectus abdominis and laterally by the inferior epigastric vessels.
• It is related to the posterior wall of inguinal canal

Boundaries of Inguinal Triangle in detail :

• Medial : Lower 5 cm of the lateral border of rectus abdominis muscle
• Lateral : Inferior epigastric Artery
• Inferior : Medial Half of the Inguinal ligament
• The floor of the triangle is covered by peritoneum, extra peritoneal tissue and fascia transversalis