Sciatica is pain along the course of sciatic nerve and affecting the nerve fibres present above knee and even till the toe depending upon the severity.
It is a symptom with a huge range of causative factors.
The pain is always felt on the back of the leg. That is why, it is mentioned under the group of DORSOPATHIES.
The leg pain is associated with tingling, numbness, and weakness travelling from the buttocks to knees.