Numbness in left thigh can be due to many reason .Further detail history is needed , whether it is diffusely over thigh, or in lateral or medial .or posterior aspect of thigh.Any associated back ache, any weakness associated?You require detail evaluation by neurologist
to differentiate whether Spinal cord
involved( as in Multiple sclerosis
)., or is it radiculopathy( Disc prolapse
), and neuropathy.You also need MRI spine focusing on dorso lumbar spine
and confirm the site of lesion.Based on it treatment planned.
If one of your parents or siblings has multiple sclerosis, you have a 1 to 3 percent chance of developing the disease — as compared with the risk in the general population, which is just a tenth of 1 percent.
Dr Sandhya Manorenj
Hi Tech city, Hyderabad