It is a subfascial space which appears as a triangular depression below the inguinal ligament when the thigh is flexed, abducted and laterally rotated.

The superficial fascia contains the superficial inguinal lymph nodes, femoral branch of the genitofemoral nerve, branches of the ilioinguinal nerve, superficial branches of the femoral artery with accompanying veins, and upper part of the great saphenous vein.

[2] The femoral triangle is important as a number of vital structures pass through it, right under the skin.

Its contents are shown below (from lateral to medial): This area contains the superficial and deep lymphatic basins (groups)[3] of the inguinal lymph nodes, and is the location targeted in an inguinal lymphadenectomy.

For patients with palpable nodal disease, removal of the superficial and deep basins are recommended.