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The lateral cutaneous nerve of the thigh is a cutaneous nerve of the thigh. It originates from the dorsal divisions of the second and third lumbar nerves from the lumbar plexus. It passes under the inguinal ligament to reach the thigh. It supplies sensation to the skin on the lateral part of the thigh by an anterior branch and a posterior branch.
The lateral cutaneous nerve of the thigh can be investigated using ultrasound. Local anaesthetic can be injected around the nerve for skin grafts and surgery around the outer thigh. Nerve compression can cause meralgia paraesthetica.
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