If you’re suffering from sciatica or pinched nerves, you may have sensations going down the legs and/or feet.
These sensations can be numbness and tingling, sharp shooting pain, or even weakness in the legs.
The numbness and tingling is a sure sign of a pinched nerve but even more important than the sensations, is the location of those sensations.
Knowing where you feel the numbness and tingling can help your doctor pinpoint the root cause of the problem.
This is due to the fact that we have dermatomes in our body. Dermatomes are specific areas on the skin that are innervated by sensory nerves.
Based on the location of the numbness and tingling, your doctor can have a better understanding of where the pain originates in the spine and help him/her come up with a more accurate diagnosis.
This is especially true if your sciatica is being caused by herniated discs in the spine. When a disc herniates, it can press on a nerve root and cause numbness and tingling in the legs and feet.
In the video you’ll also see the dermatome map seen in most doctor’s office.
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