Meralgia paraesthetica: burning and tingling in the outer thigh — not a spinal problem
Burning, tingling, or numbness in your outer thigh that doesn’t seem to come from the spine?
The myBackPain assessment identifies the meralgia paraesthetica pattern and distinguishes it from spinal nerve root causes. Results in minutes.
What is meralgia paraesthetica?
Meralgia paraesthetica is caused by compression of the lateral femoral cutaneous nerve (LFCN) as it passes under or through the inguinal ligament near the hip. It produces a characteristic pattern of burning, tingling, or numbness in the outer thigh that is often mistaken for hip pathology or spinal nerve root compression. It is a peripheral nerve entrapment — not a spinal condition — and responds well to the right treatment once correctly identified.
What does it feel like?
- Burning, tingling, or numbness on the outer (lateral) surface of the thigh
- No back pain in most cases — the outer thigh symptoms are the primary complaint
- Symptoms typically do not extend below the knee — a key distinguishing feature
- Worse with standing, walking, or hip extension
- Often relieved by sitting or hip flexion
- May be aggravated by tight waistbands, belts, or clothing pressing on the outer hip
True sciatica from a spinal nerve root follows a dermatomal pattern — it typically extends from the back through the buttock and down the back or outer calf to the foot. Meralgia paraesthetica stays on the outer thigh only and does not reach below the knee. There is usually no back pain. This distinction can be made from symptoms alone in most cases.
Common causes and risk factors
- Obesity — increased abdominal girth increases compression at the inguinal ligament
- Pregnancy — increased abdominal size and altered pelvic mechanics
- Tight clothing, belts, or waistbands — direct external compression of the nerve
- Prolonged sitting or desk work — hip flexion position compresses the nerve at the groin
- Diabetes — neuropathy increases vulnerability to peripheral nerve compression
- Recent weight gain — sudden increase in abdominal load
What helps?
Address contributing factors
Loose clothing, weight management where relevant, workstation adjustment, and avoiding prolonged hip flexion are often sufficient for mild cases. Many people improve significantly with these measures alone within weeks.
Manual therapy
Soft tissue release of the inguinal area and hip flexors, and neural mobilisation techniques for the LFCN. An osteopath or physiotherapist experienced in nerve entrapments can assess and treat the specific point of compression.
Local injection
An injection of local anaesthetic and steroid near the LFCN at the inguinal ligament is highly effective for persistent cases. Often provides lasting relief and can be both diagnostic and therapeutic.
Surgery
Rarely required. Surgical decompression or nerve transection for severe, refractory cases that have not responded to conservative management and injection.
Outer thigh burning or tingling that isn’t coming from the spine?
The myBackPain assessment identifies the meralgia paraesthetica pattern and distinguishes it from spinal nerve root causes.