Sciatica refers to pain that radiates on the trail of the nerve, that branches from your lower back through your hips and buttocks and down every leg.
Typically, sciatica affects only 1 facet of your body. Sciatica most ordinarily happens once a herniated disk, bone spur on the spine or narrowing of the spine (spinal stenosis) compresses a part of the nerve. This causes inflammation, pain and sometimes some symptom within the affected leg.