What Is Sciatica?
True sciatica is a condition that occurs when a herniated lumbar disc compresses one of the contributing roots of the sciatic nerve. This condition is often accompanied by low back pain, which can be more or less severe than the leg pain. The term “sciatica” indicates that the sciatic nerve, which travels from the lower back through the buttocks and into the leg, is thought to be the cause of the pain in this condition.
Sciatica is less common than other causes and conditions that produce back pain. For instance, sporting activities, recreational activities, and heavy labor can cause back and leg pain, which is commonly misdiagnosed as sciatica. The challenge for a physician is to distinguish between radicular pain, which is caused by an inflamed nerve root, and referred pain, which is a result of a musculoskeletal sprain or strain.