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Meralgia Paresthetica 

(entrapment of the lateral cutaneous nerve of the thigh)

Last update: Jan, 2000

What is Meralgia Paresthetica? 

The lateral cutaneous nerve of the thigh is a sensory nerve that originates in the nerve roots of the lower back (2nd and 3rd lumbar roots), and supplies sensation to the front and outside portion of the thigh. It passes through and under the inguinal ligament (which forms the groove where the leg attaches to the body at the front), and can sometimes become entrapped under it. This causes the nerve to malfunction and transmit less sensation (numbness) or distorted sensation (tingling and burning) to the brain. This entrapment and it’s symptoms are called Meralgia Paresthetica (meros = thigh, algia = pain, paresthertica = numbness or abnormal sensation).

Who gets Meralgia pareshetica? 

The syndrome is fairly common. Obesity, pregnancy, and diabetes mellitus are frequent contributing factors.

What makes it worse? 

The symptoms are usually worsened by certain body positions, including prolonged sitting or standing.

What can I do about it? 

Most often no treatment is required due to it’s benign nature. Weight loss may help in overweight people and it often improves in pregnant women after delivery . If there is a lot of associated painful tingling, local steroid injection in the nerve or application of capsaicin ointment is sometimes useful. Rarely, the nerve will have to be removed or cut to relieve the symptoms, but this leaves permanent numbness in the area.

R. O'Brien MD

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This data is provided for informational purposes only. It does not substitute for individualized advice from a qualified physician. Although attempts have been made to ensure the material is accurate and up to date it is provided in an 'as is' state. Neither the author nor neurology BC assumes any liability for errors or omissions or any problems that might arise due to  them. Always consult your physician or qualified health professional before acting on information that concerns your health.