Meralgia paresthetica, or compression of the lateral femoral cutaneous nerve, causes pain radiating along the outside of the thigh, from the groin (the anterior superior iliac spine or hip bone) down to the knee. This pain does not cross the midline of the thigh. The dark blue area in illustrations typically represents the distribution of the lateral femoral cutaneous nerve.
The problem with meralgia paresthetica is that it can resemble sciatica from a herniated disc because the pain radiates down the thigh. It’s even possible to have both conditions simultaneously.
To Locate The Lateral Femoral Cutaneous Nerve:
- Feel for your hip bone, known as the anterior superior iliac spine. This is the pelvic bone where most belts or bikini lines rest.
- If you press just below this area by about one finger's breadth and slightly inside, you may identify the nerve.
- Press gently or tap lightly with your index and middle fingers to test. Compare both sides for differences.
If the nerve is compressed, tapping this area may trigger an electrical shock-like sensation down your thigh to the knee. It can be uncomfortable, like hitting a funny bone. If this occurs, especially with a distinct electric sensation, you should consult a doctor specializing in lateral femoral cutaneous nerve compression.
If the pain is originating from your spine, tapping the nerve may not elicit discomfort. Generally, pain from meralgia paresthetica should not extend beyond the knee or reach the foot. If the pain goes elsewhere, it likely indicates a different condition.
