word-forming element meaning 1. after, behind, 2. changed, altered, 3. higher, beyond; from Greek meta (prep.) in the midst of, in common with, by means of, in pursuit or quest of, from PIE *me-in the middle (cf. German mit, Gothic miÃ¾, Old English miÃ° with, together with, among; see mid).
Quick Answer. Pain and numbness on either the left or right thigh can be caused by meralgia paresthetica, peripheral neuropathy, multiple sclerosis and lupus, explains Healthgrades. Some other causes include injury, obesity, trauma and tight clothing, notes the American Academy of Orthopaedic Surgeons.
Chronic conditions, such as lupus and multiple sclerosis, may also cause a numb thigh. Sciatica is a condition in which spinal stenosis or disc disease puts pressure on the sciatic nerve, thus resulting in leg numbness, explains Healthgrades.